i am trying to add the chatbox to index but have a problem with a code

MattF wrote:

<?php
define('PUN_ROOT', './');
require_once PUN_ROOT.'include/parser.php';
?>

that worked .. thanks alot ... but i got another problems ..

i improved the code furthur for my include/user/cb.php

look:

<?php
define('PUN_ROOT', './');
require_once PUN_ROOT.'include/parser.php';


// Load the chatbox.php and post.php language file
require PUN_ROOT.'lang/'.$pun_user['language'].'/chatbox.php';
require PUN_ROOT.'lang/'.$pun_user['language'].'/post.php';

if ($pun_user['g_read_board'] == '0')
    message($lang_common['No view']);

?>

<script type="text/javascript" src="js/prototype.js"></script>
<script type="text/javascript" src="js/chatbox.js"></script>

<div class="block">


 <h2>
    <span>
        <span class="conr" ><img style="display:none;" id="loading" name="loading" src="img/loading.gif" /></span>
    <?php echo $lang_chatbox['Chatbox'] ?> <span style="font-size:7px;vertical-align:super;"><?php if ($pun_config['o_show_version'] == '1') echo ' '.$pun_config['cb_pbb_version']; ?></span>
    </span>
  </h2>
    <div class="box">
        <div id="chatbox" class="inbox" style="overflow:auto;height:<?php echo $pun_config['cb_height'] ?>px;">
<?php

$cur_msg_txt = '';
$last_msg_time = '';
$count_id = array();

$result = $db->query('SELECT u.id, u.group_id, u.num_posts_chatbox, m.id AS m_id, m.poster_id, m.poster, m.poster_ip, m.poster_email, m.message, m.posted, g.g_id, g.g_title_chatbox FROM '.$db->prefix.'chatbox_msg AS m INNER JOIN '.$db->prefix.'users AS u ON u.id=m.poster_id INNER JOIN '.$db->prefix.'groups AS g ON g.g_id=u.group_id ORDER BY m.posted DESC LIMIT '.$pun_config['cb_max_msg']) or error('Unable to fetch messages', __FILE__, __LINE__, $db->error());

$new_msg_time = false;
while ($cur_msg = $db->fetch_assoc($result)) {
    
    // Get newest timestamp
    if ($new_msg_time == false) {
        $last_msg_time = $cur_msg['posted'];
        $new_msg_time = true;
    }
    $cur_msg_txt = $pun_config['cb_space'].$cur_msg['g_title_chatbox'].$pun_config['cb_disposition'].$cur_msg_txt;
    
if ($cur_msg['g_id'] != PUN_GUEST)
        $cur_msg_txt = str_replace('<pun_username>', '<a href="profile.php?id='.$cur_msg['id'].'"><span style="color: '.$cur_msg['g_color'].'">'.pun_htmlspecialchars($cur_msg['poster']).'</span></a>', $cur_msg_txt);
    else
      $cur_msg_txt = str_replace('<pun_username>', pun_htmlspecialchars($cur_msg['poster']), $cur_msg_txt);

    $cur_msg_txt = str_replace('<pun_date>', format_time($cur_msg['posted']), $cur_msg_txt);
    
        if ($cur_msg['g_id'] != PUN_GUEST)
      $cur_msg_txt = str_replace('<pun_nbpost>', $cur_msg['num_posts_chatbox'], $cur_msg_txt);
    else
    {

      if (!isset($count_id[$cur_msg['poster']]))
      {
        $like_command = ($db_type == 'pgsql') ? 'ILIKE' : 'LIKE';
        
        $count = $db->query('SELECT COUNT(id) FROM '.$db->prefix.'chatbox_msg WHERE poster '.$like_command.' \''.$db->escape(str_replace('*', '%', $cur_msg['poster'])).'\'') or error('Unable to fetch user chatbox post count', __FILE__, __LINE__, $db->error());
        $num_post = $db->result($count);
        $count_id[$cur_msg['poster']] = $num_post;
      }
      else
        $num_post = $count_id[$cur_msg['poster']];

      $cur_msg_txt = str_replace('<pun_nbpost>', $num_post, $cur_msg_txt);
    }

    $cur_msg_txt = str_replace('<pun_nbpost_txt>', $lang_chatbox['Posts'], $cur_msg_txt);

        if ($pun_user['g_id'] < PUN_GUEST)
      {
      $cur_msg_admin = ' [ <a href="chatbox.php?del='.$cur_msg['m_id'].'">Delete</a> | <a href="chatbox.php?get_host='.$cur_msg['m_id'].'">'.$cur_msg['poster_ip'].'</a>';
      if ($cur_msg['poster_email'])
              $cur_msg_admin .= ' | <a href="mailto:'.$cur_msg['poster_email'].'">'.$lang_common['E-mail'].'</a> ]';
          else
            $cur_msg_admin .= ' ] ';
        }
    else
      $cur_msg_admin = '';

      $cur_msg_txt = str_replace('<pun_admin>', $cur_msg_admin, $cur_msg_txt);
      $cur_msg_txt = str_replace('<pun_message>', parse_message($cur_msg['message'], 0), $cur_msg_txt);

  }


if (!$cur_msg_txt)
    echo $lang_chatbox['No Message'];
else
    echo "\t\t\t".$cur_msg_txt."\n";
?>


        </div>
    </div>








  <h2>
    <span>
    <script language="javascript">
    <!--
    // This checkbox is utterly useless, unless we have javascript enabled. As such, we won't display it until then.
    document.write('<span class="conr" style="width:150px;" ><?php echo $lang_chatbox['Autoscroll'] ?>: <input type="checkbox" id="autoscroll" value="" checked  tabindex="<?php echo $cur_index++ ?>" /></span>');

    // -->
    </script>
<?php
if ($pun_user['g_post_chatbox'] == '1') {
    $cur_index = 1;
?>
      <form id="post" method="post" name="formulaire" action="chatbox.php" onsubmit="send_message(); return false;">
         <input type="hidden" name="form_sent" value="1" />
         <input type="hidden" name="form_user" id="form_user" value="<?php echo (!$pun_user['is_guest']) ? pun_htmlspecialchars($pun_user['username']) : 'Guest'; ?>" />
<?php
    if ($pun_user['is_guest']) {
        $email_label = ($pun_config['p_force_guest_email'] == '1') ? '<strong>'.$lang_common['E-mail'].':</strong>' : $lang_common['E-mail'];
        $email_form_name = ($pun_config['p_force_guest_email'] == '1') ? 'req_email' : 'email';
        
        if($email_form_name = 'req_email')
            echo "\t".'<input type="hidden" name="email" id="email" value="" />'."\n";
        else
            echo "\t".'<input type="hidden" name="req_email" id="req_email" value="" />'."\n";
?>
          <strong><?php echo $lang_post['Guest name'] ?>:</strong> <input type="text" name="req_username" id="req_username" value="<?php if (isset($_POST['req_username'])) echo pun_htmlspecialchars($username); ?>" size="15" maxlength="25" tabindex="<?php echo $cur_index++ ?>" /> 
          <?php echo $email_label ?> <input type="text" name="<?php echo $email_form_name ?>" id="<?php echo $email_form_name ?>" value="<?php if (isset($_POST[$email_form_name])) echo pun_htmlspecialchars($email); ?>" size="15" maxlength="50" tabindex="<?php echo $cur_index++ ?>" /> 
<?php
    }
    else {
?>
          <input type="hidden" name="req_username" id="req_username" value="" /> 
          <input type="hidden" name="email" id="email" value="" /> 
          <input type="hidden" name="req_email" id="req_email" value="" /> 
<?php
    }
?>
         <strong><?php echo $lang_chatbox['Message'] ?>:</strong> <input type="text" name="req_message"  id="req_message" value="<?php if (isset($_POST['req_message'])) echo pun_htmlspecialchars($message); ?>" size="35" maxlength="<?php echo $pun_config['cb_msg_maxlength'] ?>"  tabindex="<?php echo $cur_index++ ?>" /> 
         <input type="submit" name="submit" value="Submit" accesskey="s" tabindex="<?php echo $cur_index++ ?>" />
    <script language="javascript">
    <!--
    document.formulaire.req_message.focus();
    // -->
    </script>
    </form>
<?php
}
else
    echo $lang_chatbox['No Post Permission'];
?>
    </span>
  </h2>
</div>
<script language="javascript">
    // Begin getting messages
    var LastMsg = '<?php echo $last_msg_time; ?>';
    $('autoscroll').value = 'true';
    get_messages();
    checker = new PeriodicalExecuter(get_messages, <?php echo $pun_config['cb_ajax_refresh']; ?>);
</script>

look at this chat www.sportstv.co.cc/chatbox.php
and look at the index page chat ... www.sportstv.co.cc

1- the style is all curropted ... for guests ...
2- guest cant post after the sitting for guest are on ... it shows this error:

Error] - Today 00:35:20
Usernames must be at least 2 characters long. Please choose another (longer) username.

3- the user groups are all not colourfull but they are colourfull in the chatbox.php page

--------------------------------------------------------------------------------

here is my chatbox.php code:

<?php
/***********************************************************************

  Copyright (C) 2002-2005  Rickard Andersson (rickard@punbb.org)

  This file is part of PunBB.

  PunBB is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published
  by the Free Software Foundation; either version 2 of the License,
  or (at your option) any later version.

  PunBB is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  MA  02111-1307  USA

************************************************************************/

define('PUN_ALT4',1);
if (!defined('PUN_ROOT')) define('PUN_ROOT','./');


require PUN_ROOT.'include/common.php';
require PUN_ROOT.'include/parser.php';

$lang_common['lang_encoding'] = 'utf-8';
header('Content-type: text/html; charset=utf-8');

if (!$pun_config['cb_pbb_version'])
    message('Poki BB Chatbox is not installed correctly. Please make sure you have launch install_mod.php');

if ($pun_user['g_read_board'] == '0')
    message($lang_common['No view']);

// Load the chatbox.php and post.php language file
require PUN_ROOT.'lang/'.$pun_user['language'].'/chatbox.php';
require PUN_ROOT.'lang/'.$pun_user['language'].'/post.php';

// if it's ajax
if (isset($_GET['ajax']))
{

    // Send no-cache headers
    header('Expires: Thu, 21 Jul 1977 07:30:00 GMT');    // When yours truly first set eyes on this world! :)
    header('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT');
    header('Cache-Control: post-check=0, pre-check=0', false);
    header('Pragma: no-cache');        // For HTTP/1.0 compability
    
    if ($_GET['action'] == 'add')
    {
        // Start with a clean slate
        $error = $pun_config['cb_space'].$pun_config['cb_ajax_errors'];
        $error = str_replace('<pun_error>', $lang_chatbox['Error Title'], $error);
        $error = str_replace('<pun_date>', format_time(time()), $error);
        
        //exit('error:chat'.str_replace('<pun_error_text>', parse_message($value, 0), $error));
    
        // Make sure form_user is correct
        if (($pun_user['is_guest'] && $_GET['form_user'] != 'Guest') || (!$pun_user['is_guest'] && $_GET['form_user'] != $pun_user['username']))
            exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_common['Bad request'], 0), $error));
        
        // Do we have permission to post?
        if ($pun_user['g_post_chatbox'] != '1')
            exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_chatbox['No Post Permission'], 0), $error));

        // Flood protection
        if (!$pun_user['is_guest'] && $pun_user['last_post_chatbox'] != '' && (time() - $pun_user['last_post_chatbox']) < $pun_user['g_post_flood_chatbox'])
            exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_post['Flood start'].' '.$pun_user['g_post_flood_chatbox'].' '.$lang_post['flood end'], 0), $error));
    
        if ($pun_user['is_guest'])
        {
$result = $db->query('SELECT u.id, u.group_id, u.num_posts_chatbox, m.id AS m_id, m.poster_id, m.poster, m.poster_ip, m.poster_email, m.message, m.posted, g.g_id, g.g_title_chatbox, g.g_color FROM '.$db->prefix.'chatbox_msg AS m INNER JOIN '.$db->prefix.'users AS u ON u.id=m.poster_id INNER JOIN '.$db->prefix.'groups AS g ON g.g_id=u.group_id ORDER BY m.posted DESC LIMIT '.$pun_config['cb_max_msg']) or error('Unable to fetch messages', __FILE__, __LINE__, $db->error());
            $cur_post = $db->fetch_assoc($result);
            
            if ((time() - $cur_post['posted']) < $pun_user['g_post_flood_chatbox'])
                exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_post['Flood start'].' '.$pun_user['g_post_flood_chatbox'].' '.$lang_post['flood end'], 0), $error));
        }
        
        // If the user is logged in we get the username and e-mail from $pun_user
        if (!$pun_user['is_guest'])
        {
            $username = $pun_user['username'];
            $email = $pun_user['email'];
        }
        // Otherwise it should be in $_GET
        else
        {
            $username = trim($_GET['req_username']);
            $email = strtolower(trim(($pun_config['p_force_guest_email'] == '1') ? $_GET['req_email'] : $_GET['email']));
    
            // Load the register.php/profile.php language files
            require PUN_ROOT.'lang/'.$pun_user['language'].'/prof_reg.php';
            require PUN_ROOT.'lang/'.$pun_user['language'].'/register.php';
    
            // It's a guest, so we have to validate the username
            if (strlen($username) < 2)
                exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_prof_reg['Username too short'], 0), $error));
            else if (!strcasecmp($username, 'Guest') || !strcasecmp($username, $lang_common['Guest']))
                exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_prof_reg['Username guest'], 0), $error));
            else if (preg_match('/[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/', $username))
                exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_prof_reg['Username IP'], 0), $error));
    
            if ((strpos($username, '[') !== false || strpos($username, ']') !== false) && strpos($username, '\'') !== false && strpos($username, '"') !== false)
                exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_prof_reg['Username reserved chars'], 0), $error));
            if (preg_match('#\[b\]|\[/b\]|\[u\]|\[/u\]|\[i\]|\[/i\]|\[color|\[/color\]|\[quote\]|\[quote=|\[/quote\]|\[code\]|\[/code\]|\[img\]|\[/img\]|\[url|\[/url\]|\[email|\[/email\]#i', $username))
                exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_prof_reg['Username BBCode'], 0), $error));
    
            // Check username for any censored words
            $temp = censor_words($username);
            if ($temp != $username)
                exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_register['Username censor'], 0), $error));
    
            // Check that the username (or a too similar username) is not already registered
            $result = $db->query('SELECT username FROM '.$db->prefix.'users WHERE username=\''.$db->escape($username).'\' OR username=\''.$db->escape(preg_replace('/[^\w]/', '', $username)).'\'') or error('Unable to fetch user info', __FILE__, __LINE__, $db->error());
            if ($db->num_rows($result))
            {
                $busy = $db->result($result);
                exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_register['Username dupe 1'].' '.pun_htmlspecialchars($busy).'. '.$lang_register['Username dupe 2'], 0), $error));
            }
    
            if ($pun_config['p_force_guest_email'] == '1' || $email != '')
            {
                require PUN_ROOT.'include/email.php';
                if (!is_valid_email($email))
                    exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_common['Invalid e-mail'], 0), $error));
            }            
            
        }
    
        // Clean up message from POST
        $message = str_replace('-|-', '+', pun_linebreaks(pun_trim($_GET['req_message'])));
        
        if ($message == '')
            exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_chatbox['Error No message'], 0), $error));
        else if (strlen($message) > $pun_config['cb_msg_maxlength'])
            exit('error:chat'.str_replace('<pun_error_text>', parse_message($lang_chatbox['Error Too long message'], 0), $error));
        else if ($pun_config['p_message_all_caps'] == '0' && strtoupper($message) == $message && $pun_user['g_id'] > PUN_MOD)
            $message = ucwords(strtolower($message));
    
        $errors = '';
        // Validate BBCode syntax
        if ($pun_config['p_message_bbcode'] == '1' && strpos($message, '[') !== false && strpos($message, ']') !== false)
            $message = preparse_bbcode($message, $errors);
            
        if ($errors != '')
        exit('error:chat'.str_replace('<pun_error_text>', parse_message($errors[0], 0), $error));


        $now = time();

        if (!$pun_user['is_guest'])
        {
            // Insert message
            $db->query('INSERT INTO '.$db->prefix.'chatbox_msg (poster, poster_id, poster_ip, message, posted) VALUES(\''.$db->escape($username).'\', '.$pun_user['id'].', \''.get_remote_address().'\', \''.$db->escape($message).'\', '.$now.')') or error('Unable to post message', __FILE__, __LINE__, $db->error());

            // Increment his/her chatbox post count
              $low_prio = ($db_type == 'mysql') ? 'LOW_PRIORITY ' : '';
              $db->query('UPDATE '.$low_prio.$db->prefix.'users SET num_posts_chatbox=num_posts_chatbox+1, last_post_chatbox='.$now.' WHERE id='.$pun_user['id']) or error('Unable to update user', __FILE__, __LINE__, $db->error());

        }
        else
        {
            // Insert message
            $email_sql = ($pun_config['p_force_guest_email'] == '1' || $email != '') ? '\''.$email.'\'' : 'NULL';
            $db->query('INSERT INTO '.$db->prefix.'chatbox_msg (poster, poster_id, poster_ip, poster_email, message, posted) VALUES(\''.$db->escape($username).'\', '.$pun_user['id'].', \''.get_remote_address().'\', '.$email_sql.', \''.$db->escape($message).'\', '.$now.')') or error('Unable to post message', __FILE__, __LINE__, $db->error());
        }

        $count = $db->query('SELECT COUNT(id) FROM '.$db->prefix.'chatbox_msg') or error('Unable to fetch chatbox post count', __FILE__, __LINE__, $db->error());
        $num_post = $db->result($count);
        
        $limit = ($num_post-$pun_config['cb_max_msg'] <= 0) ? 0 : $num_post-$pun_config['cb_max_msg'];
        
        
        $result = $db->query('SELECT id,posted FROM '.$db->prefix.'chatbox_msg ORDER BY posted ASC LIMIT '.$limit) or error('Unable to select post to delete', __FILE__, __LINE__, $db->error());
        while ($del_msg = $db->fetch_assoc($result))
        {
        $db->query('DELETE FROM '.$db->prefix.'chatbox_msg WHERE id = '.$del_msg['id'].' LIMIT 1') or error('Unable to delete post', __FILE__, __LINE__, $db->error());
        }
        
        $_GET['req_message'] = NULL;
    }

        $cur_msg_txt = '';
        $response = '';
        $count_id = array();

        $last_msg_time = intval($_GET['last_msg']);
        //$messages = $db->query('SELECT u.id, u.group_id, u.num_posts_chatbox, m.id AS m_id, m.poster_id, m.poster, m.poster_ip, m.poster_email, m.message, m.posted, g.g_id, g.g_title_chatbox FROM '.$db->prefix.'chatbox_msg AS m INNER JOIN '.$db->prefix.'users AS u ON u.id=m.poster_id INNER JOIN '.$db->prefix.'groups AS g ON g.g_id=u.group_id WHERE m.posted > '.$last_msg_time.' ORDER BY m.posted DESC LIMIT '.$pun_config['cb_max_msg']) or error('Unable to fetch messages', __FILE__, __LINE__, $db->error());
        $messages = $db->query('SELECT u.id, u.group_id, u.num_posts_chatbox, m.id AS m_id, m.poster_id, m.poster, m.poster_ip, m.poster_email, m.message, m.posted, g.g_id, g.g_title_chatbox FROM '.$db->prefix.'chatbox_msg AS m INNER JOIN '.$db->prefix.'users AS u ON u.id=m.poster_id INNER JOIN '.$db->prefix.'groups AS g ON g.g_id=u.group_id WHERE m.posted > '.$last_msg_time.' ORDER BY m.posted DESC LIMIT 0,50') or error('Unable to fetch messages', __FILE__, __LINE__, $db->error());

        $i = 0;
        while ($cur_msg = $db->fetch_assoc($messages))
        {    
        $i++;
        if ($i == 1)
        {
            // Get newest timestamp
            $response = $cur_msg['posted'];
        }
        $cur_msg_txt .= $pun_config['cb_space'].$cur_msg['g_title_chatbox'].$pun_config['cb_disposition'];
        
if ($cur_msg['g_id'] != PUN_GUEST)
        $cur_msg_txt = str_replace('<pun_username>', '<a href="profile.php?id='.$cur_msg['id'].'"><span style="color: '.$cur_msg['g_color'].'">'.pun_htmlspecialchars($cur_msg['poster']).'</span></a>', $cur_msg_txt);
    else
        $cur_msg_txt = str_replace('<pun_username>', pun_htmlspecialchars($cur_msg['poster']), $cur_msg_txt);
        
        $cur_msg_txt = str_replace('<pun_date>', format_time($cur_msg['posted']), $cur_msg_txt);
                
            if ($cur_msg['g_id'] != PUN_GUEST)
        $cur_msg_txt = str_replace('<pun_nbpost>', $cur_msg['num_posts_chatbox'], $cur_msg_txt);
        else
        {
        
        if (!isset($count_id[$cur_msg['poster']]))
        {
        $like_command = ($db_type == 'pgsql') ? 'ILIKE' : 'LIKE';
        
        $count = $db->query('SELECT COUNT(id) FROM '.$db->prefix.'chatbox_msg WHERE poster '.$like_command.' \''.$db->escape(str_replace('*', '%', $cur_msg['poster'])).'\'') or error('Unable to fetch user chatbox post count', __FILE__, __LINE__, $db->error());
        $num_post = $db->result($count);
        $count_id[$cur_msg['poster']] = $num_post;
        }
        else
        $num_post = $count_id[$cur_msg['poster']];
        
        $cur_msg_txt = str_replace('<pun_nbpost>', $num_post, $cur_msg_txt);
        }
        
        $cur_msg_txt = str_replace('<pun_nbpost_txt>', $lang_chatbox['Posts'], $cur_msg_txt);
        
            if ($pun_user['g_id'] < PUN_GUEST)
          {
        $cur_msg_admin = ' [ <a href="chatbox.php?del='.$cur_msg['m_id'].'">Delete</a> | <a href="chatbox.php?get_host='.$cur_msg['m_id'].'">'.$cur_msg['poster_ip'].'</a>';
        if ($cur_msg['poster_email'])
                $cur_msg_admin .= ' | <a href="mailto:'.$cur_msg['poster_email'].'">'.$lang_common['E-mail'].'</a> ]';
            else
              $cur_msg_admin .= ' ] ';
            }
        else
        $cur_msg_admin = '';
        
        $cur_msg_txt = str_replace('<pun_admin>', $cur_msg_admin, $cur_msg_txt);
        $cur_msg_txt = str_replace('<pun_message>', parse_message($cur_msg['message'], 0), $cur_msg_txt);
        
        $response .= $cur_msg_txt . "\n";
    }
    if (!$response)
        $response = $last_msg_time;
    
    $response = pun_trim($response);
    
    exit($response);

}

// This particular function doesn't require forum-based moderator access. It can be used
// by all moderators and admins.

if (isset($_GET['del']))
{
    if ($pun_user['g_id'] > PUN_MOD)
        message($lang_common['No permission']);

        $id = intval($_GET['del']);
        if ($id < 1)
            message($lang_common['Bad request']);


$result = $db->query('Delete From '.$db->prefix.'chatbox_msg WHERE id='.$id.'') or error('Unable to fetch post IP address', __FILE__, __LINE__, $db->error()); 
}


if (isset($_GET['get_host']))
{
    if ($pun_user['g_id'] > PUN_MOD)
        message($lang_common['No permission']);

    // Is get_host an IP address or a post ID?
    if (preg_match('/[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/', $_GET['get_host']))
        $ip = $_GET['get_host'];
    else
    {
        $get_host = intval($_GET['get_host']);
        if ($get_host < 1)
            message($lang_common['Bad request']);

        $result = $db->query('SELECT poster_ip FROM '.$db->prefix.'chatbox_msg WHERE id='.$get_host) or error('Unable to fetch post IP address', __FILE__, __LINE__, $db->error());
        if (!$db->num_rows($result))
            message($lang_common['Bad request']);

        $ip = $db->result($result);
    }

    message('The IP address is: '.$ip.'<br />The host name is: '.@gethostbyaddr($ip).'<br /><br /><a href="admin_users.php?show_users='.$ip.'">Show more users for this IP</a>');
}

$page_title = pun_htmlspecialchars($lang_chatbox['Page_title']);
define('PUN_ALLOW_INDEX', 1);
require PUN_ROOT.'header.php';

if ($pun_user['g_read_chatbox'] != '1')
  message($lang_chatbox['No Read Permission']);

// Did someone just hit "Submit"?
if (isset($_POST['form_sent']))
{

    // Make sure form_user is correct
    if (($pun_user['is_guest'] && $_POST['form_user'] != 'Guest') || (!$pun_user['is_guest'] && $_POST['form_user'] != $pun_user['username']))
        message($lang_common['Bad request']);

  // Do we have permission to post?
  if ($pun_user['g_post_chatbox'] != '1')
    message($lang_chatbox['No Post Permission']);

  // Start with a clean slate
  $errors = array();

    // Flood protection
    if (!$pun_user['is_guest'] && $pun_user['last_post_chatbox'] != '' && (time() - $pun_user['last_post_chatbox']) < $pun_user['g_post_flood_chatbox'])
        $errors[] = $lang_post['Flood start'].' '.$pun_user['g_post_flood_chatbox'].' '.$lang_post['flood end'];

  if ($pun_user['is_guest'])
  {
    $result = $db->query('SELECT id, poster_ip, posted FROM '.$db->prefix.'chatbox_msg WHERE poster_ip=\''.get_remote_address().'\' ORDER BY posted DESC LIMIT 1') or error('Unable to fetch messages for flood protection', __FILE__, __LINE__, $db->error());
    $cur_post = $db->fetch_assoc($result);

    if ((time() - $cur_post['posted']) < $pun_user['g_post_flood_chatbox'])
          $errors[] = $lang_post['Flood start'].' '.$pun_user['g_post_flood_chatbox'].' '.$lang_post['flood end'];
  }

  // If the user is logged in we get the username and e-mail from $pun_user
    if (!$pun_user['is_guest'])
    {
        $username = $pun_user['username'];
        $email = $pun_user['email'];
    }

    // Otherwise it should be in $_POST
    else
    {
        $username = trim($_POST['req_username']);
        $email = strtolower(trim(($pun_config['p_force_guest_email'] == '1') ? $_POST['req_email'] : $_POST['email']));

        // Load the register.php/profile.php language files
        require PUN_ROOT.'lang/'.$pun_user['language'].'/prof_reg.php';
        require PUN_ROOT.'lang/'.$pun_user['language'].'/register.php';

        // It's a guest, so we have to validate the username
        if (strlen($username) < 2)
            $errors[] = $lang_prof_reg['Username too short'];
        else if (!strcasecmp($username, 'Guest') || !strcasecmp($username, $lang_common['Guest']))
            $errors[] = $lang_prof_reg['Username guest'];
        else if (preg_match('/[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/', $username))
            $errors[] = $lang_prof_reg['Username IP'];

        if ((strpos($username, '[') !== false || strpos($username, ']') !== false) && strpos($username, '\'') !== false && strpos($username, '"') !== false)
            $errors[] = $lang_prof_reg['Username reserved chars'];
        if (preg_match('#\[b\]|\[/b\]|\[u\]|\[/u\]|\[i\]|\[/i\]|\[color|\[/color\]|\[quote\]|\[quote=|\[/quote\]|\[code\]|\[/code\]|\[img\]|\[/img\]|\[url|\[/url\]|\[email|\[/email\]#i', $username))
            $errors[] = $lang_prof_reg['Username BBCode'];

        // Check username for any censored words
        $temp = censor_words($username);
        if ($temp != $username)
            $errors[] = $lang_register['Username censor'];

        // Check that the username (or a too similar username) is not already registered
        $result = $db->query('SELECT username FROM '.$db->prefix.'users WHERE username=\''.$db->escape($username).'\' OR username=\''.$db->escape(preg_replace('/[^\w]/', '', $username)).'\'') or error('Unable to fetch user info', __FILE__, __LINE__, $db->error());
        if ($db->num_rows($result))
        {
            $busy = $db->result($result);
            $errors[] = $lang_register['Username dupe 1'].' '.pun_htmlspecialchars($busy).'. '.$lang_register['Username dupe 2'];
        }

        if ($pun_config['p_force_guest_email'] == '1' || $email != '')
        {
            require PUN_ROOT.'include/email.php';
            if (!is_valid_email($email))
                $errors[] = $lang_common['Invalid e-mail'];
        }
    }

    // Clean up message from POST
    $message = pun_linebreaks(pun_trim($_POST['req_message']));

    if ($message == '')
        $errors[] = $lang_chatbox['Error No message'];
    else if (strlen($message) > $pun_config['cb_msg_maxlength'])
        $errors[] = $lang_chatbox['Error Too long message'];
    else if ($pun_config['p_message_all_caps'] == '0' && strtoupper($message) == $message && $pun_user['g_id'] > PUN_MOD)
        $message = ucwords(strtolower($message));

    // Validate BBCode syntax
    if ($pun_config['p_message_bbcode'] == '1' && strpos($message, '[') !== false && strpos($message, ']') !== false)
    {
        $message = preparse_bbcode($message, $errors);
    }

    // Did everything go according to plan?
    if (empty($errors))
    {
    $now = time();

        if (!$pun_user['is_guest'])
        {
            // Insert message
            $db->query('INSERT INTO '.$db->prefix.'chatbox_msg (poster, poster_id, poster_ip, message, posted) VALUES(\''.$db->escape($username).'\', '.$pun_user['id'].', \''.get_remote_address().'\', \''.$db->escape($message).'\', '.$now.')') or error('Unable to post message', __FILE__, __LINE__, $db->error());

          // Increment his/her chatbox post count
              $low_prio = ($db_type == 'mysql') ? 'LOW_PRIORITY ' : '';
              $db->query('UPDATE '.$low_prio.$db->prefix.'users SET num_posts_chatbox=num_posts_chatbox+1, last_post_chatbox='.$now.' WHERE id='.$pun_user['id']) or error('Unable to update user', __FILE__, __LINE__, $db->error());

        }
        else
        {
            // Insert message
            $email_sql = ($pun_config['p_force_guest_email'] == '1' || $email != '') ? '\''.$email.'\'' : 'NULL';
            $db->query('INSERT INTO '.$db->prefix.'chatbox_msg (poster, poster_id, poster_ip, poster_email, message, posted) VALUES(\''.$db->escape($username).'\', '.$pun_user['id'].', \''.get_remote_address().'\', '.$email_sql.', \''.$db->escape($message).'\', '.$now.')') or error('Unable to post message', __FILE__, __LINE__, $db->error());
        }

    $count = $db->query('SELECT COUNT(id) FROM '.$db->prefix.'chatbox_msg') or error('Unable to fetch chatbox post count', __FILE__, __LINE__, $db->error());
    $num_post = $db->result($count);

    $limit = ($num_post-$pun_config['cb_max_msg'] <= 0) ? 0 : $num_post-$pun_config['cb_max_msg'];


    $result = $db->query('SELECT id,posted FROM '.$db->prefix.'chatbox_msg ORDER BY posted ASC LIMIT '.$limit) or error('Unable to select post to delete', __FILE__, __LINE__, $db->error());
    while ($del_msg = $db->fetch_assoc($result))
    {
      $db->query('DELETE FROM '.$db->prefix.'chatbox_msg WHERE id = '.$del_msg['id'].' LIMIT 1') or error('Unable to delete post', __FILE__, __LINE__, $db->error());
    }

      $_POST['req_message'] = NULL;
  }

}

// If there are errors, we display them
if (!empty($errors))
{

?>
<div id="posterror" class="block">
    <h2><span><?php echo $lang_post['Post errors'] ?></span></h2>
    <div class="box">
        <div class="inbox">
            <p><?php echo $lang_post['Post errors info'] ?></p>
            <ul>
<?php

    while (list(, $cur_error) = each($errors))
        echo "\t\t\t\t".'<li><strong>'.$cur_error.'</strong></li>'."\n";
?>
            </ul>
        </div>
    </div>
</div>

<?php

}

?>
<script type="text/javascript" src="js/prototype.js"></script>
<script type="text/javascript" src="js/chatbox.js"></script>
<div class="block">
  <h2>
    <span>
<span class="conr" ><img alt="" style="display:none;" id="loading" name="loading" src="img/loading.gif" /></span>
    
<?php echo $lang_chatbox['Chatbox'] ?></span>
  </h2>
    <div class="box">
        <div id="chatbox" class="inbox" style="overflow:auto;height:<?php echo $pun_config['cb_height'] ?>px;">
<?php

$cur_msg_txt = '';
$last_msg_time = '';
$count_id = array();

$result = $db->query('SELECT u.id, u.group_id, u.num_posts_chatbox, m.id AS m_id, m.poster_id, m.poster, m.poster_ip, m.poster_email, m.message, m.posted, g.g_id, g.g_title_chatbox, g.g_color FROM '.$db->prefix.'chatbox_msg AS m INNER JOIN '.$db->prefix.'users AS u ON u.id=m.poster_id INNER JOIN '.$db->prefix.'groups AS g ON g.g_id=u.group_id ORDER BY m.posted DESC LIMIT '.$pun_config['cb_max_msg']) or error('Unable to fetch messages', __FILE__, __LINE__, $db->error());
$i = 0;
while ($cur_msg = $db->fetch_assoc($result))
  {
    $i++;
    if ($i == 1)
    {
        // Get newest timestamp
        $last_msg_time = $cur_msg['posted'];
    }
    $cur_msg_txt = $pun_config['cb_space'].$cur_msg['g_title_chatbox'].$pun_config['cb_disposition'].$cur_msg_txt;

if ($cur_msg['g_id'] != PUN_GUEST)
        $cur_msg_txt = str_replace('<pun_username>', '<a href="profile.php?id='.$cur_msg['id'].'"><span style="color: '.$cur_msg['g_color'].'">'.pun_htmlspecialchars($cur_msg['poster']).'</span></a>', $cur_msg_txt);
    else
      $cur_msg_txt = str_replace('<pun_username>', pun_htmlspecialchars($cur_msg['poster']), $cur_msg_txt);

    $cur_msg_txt = str_replace('<pun_date>', format_time($cur_msg['posted']), $cur_msg_txt);
    
        if ($cur_msg['g_id'] != PUN_GUEST)
      $cur_msg_txt = str_replace('<pun_nbpost>', $cur_msg['num_posts_chatbox'], $cur_msg_txt);
    else
    {

      if (!isset($count_id[$cur_msg['poster']]))
      {
        $like_command = ($db_type == 'pgsql') ? 'ILIKE' : 'LIKE';
        
        $count = $db->query('SELECT COUNT(id) FROM '.$db->prefix.'chatbox_msg WHERE poster '.$like_command.' \''.$db->escape(str_replace('*', '%', $cur_msg['poster'])).'\'') or error('Unable to fetch user chatbox post count', __FILE__, __LINE__, $db->error());
        $num_post = $db->result($count);
        $count_id[$cur_msg['poster']] = $num_post;
      }
      else
        $num_post = $count_id[$cur_msg['poster']];

      $cur_msg_txt = str_replace('<pun_nbpost>', $num_post, $cur_msg_txt);
    }

    $cur_msg_txt = str_replace('<pun_nbpost_txt>', $lang_chatbox['Posts'], $cur_msg_txt);

        if ($pun_user['g_id'] < PUN_GUEST)
      {
      $cur_msg_admin = ' [ <a href="chatbox.php?del='.$cur_msg['m_id'].'">Delete</a> | <a href="chatbox.php?get_host='.$cur_msg['m_id'].'">'.$cur_msg['poster_ip'].'</a>';
      if ($cur_msg['poster_email'])
              $cur_msg_admin .= ' | <a href="mailto:'.$cur_msg['poster_email'].'">'.$lang_common['E-mail'].'</a> ]';
          else
            $cur_msg_admin .= ' ] ';
        }
    else
      $cur_msg_admin = '';

      $cur_msg_txt = str_replace('<pun_admin>', $cur_msg_admin, $cur_msg_txt);
      $cur_msg_txt = str_replace('<pun_message>', parse_message($cur_msg['message'], 0), $cur_msg_txt);

  }
if (!$cur_msg_txt)
  echo $lang_chatbox['No Message'];
else
  echo "\t\t\t".$cur_msg_txt."\n";
?>
        </div>
    </div>

    
<?php
if ($pun_user['g_post_chatbox'] == '1')
  {
    $cur_index = 1;
  ?>
            <form id="post" method="post" name="post" action="chatbox.php">

         <input type="hidden" name="form_sent" value="1" />
         <input type="hidden" name="form_user" id="form_user" value="<?php echo (!$pun_user['is_guest']) ? pun_htmlspecialchars($pun_user['username']) : 'Guest'; ?>" />
<?php

if ($pun_user['is_guest'])
{
    $email_label = ($pun_config['p_force_guest_email'] == '1') ? '<strong>'.$lang_common['E-mail'].':</strong>' : $lang_common['E-mail'];
    $email_form_name = ($pun_config['p_force_guest_email'] == '1') ? 'req_email' : 'email';

    if($email_form_name = 'req_email')
        echo "\t".'<input type="hidden" name="email" id="email" value="" />'."\n";
    else
        echo "\t".'<input type="hidden" name="req_email" id="req_email" value="" />'."\n";

?>
          <strong><?php echo $lang_post['Guest name'] ?>:</strong><br /><input class="textbox" type="text" name="req_username" id="req_username" value="<?php if (isset($_POST['req_username'])) echo pun_htmlspecialchars($username); ?>" size="20" maxlength="25" tabindex="<?php echo $cur_index++ ?>" /> 
          <?php echo $email_label ?> <input class="textbox" type="text" name="<?php echo $email_form_name ?>" id="<?php echo $email_form_name ?>" value="<?php if (isset($_POST[$email_form_name])) echo pun_htmlspecialchars($email); ?>" size="20" maxlength="50" tabindex="<?php echo $cur_index++ ?>" /><br /> 
<?php

}
else
{
?>
          <input type="hidden" name="req_username" id="req_username" value="" /> 
          <input type="hidden" name="email" id="email" value="" /> 
          <input type="hidden" name="req_email" id="req_email" value="" />

<?php

}

?><br />
<div id="posterror2" class="block">
    <h2><span><?php echo $lang_common['Message'] ?></span></h2>
    <div class="box">
        <div style="padding: 10px 15px 10px 10px;" class="inbox">
                        <textarea name="req_message" id="req_message" class="textbox" rows="20" style="width: 100%;" tabindex="<?php echo $cur_index++ ?>"><?php echo isset($_POST['req_message']) ? pun_htmlspecialchars($message) : (isset($quote) ? $quote : ''); ?></textarea><br />
<?php /* punToolBar */
if (file_exists(PUN_ROOT.'cache/cache_puntoolbar.php')) {
    include PUN_ROOT.'cache/cache_puntoolbar.php';
} else {
    require_once PUN_ROOT.'include/cache_puntoolbar.php';
    generate_ptb_cache();
    require PUN_ROOT.'cache/cache_puntoolbar.php';
}
?>
             <br /><strong><?php echo $lang_chatbox['Message'] ?>:</strong> 
 
             <input class="button" type="submit" name="submit" value="<?php echo $lang_chatbox['Btn Send'] ?>" accesskey="s" tabindex="<?php echo $cur_index++ ?>" />
</div></div></div>
    <div style="padding: 5px;" class="box">
<script type="text/javascript" language="javascript">
    <!--
    // This button is utterly useless, unless we have javascript enabled. As such, we won't display it until then.
    document.write('<?php echo $lang_chatbox['Autoscroll'] ?>: <input type="checkbox" id="autoscroll" value="" checked  tabindex="<?php echo $cur_index++ ?>" />');

document.getElementById("post").req_message.focus();

    // -->
    </script></div>
    </form>
  <?php
  }
else
  echo $lang_chatbox['No Post Permission'];
?>
</div>

<script type="text/javascript" language="javascript">
    // Begin getting messages
    var LastMsg = '<?php echo $last_msg_time; ?>';
    $('autoscroll').value = 'true';
    get_messages();
    checker = new PeriodicalExecuter(get_messages, <?php echo $pun_config['cb_ajax_refresh']; ?>);
</script>

<?php

require PUN_ROOT.'footer.php';

so any idea to correct all the problems

THANKS Aloot for all the people who has helped and tried to help ...