Full source is:

<div class="main-head"> 
        <h2 class="hn"><span><span class="item-info">Users [ 1 ]</span></span></h2> 
    </div> 
    <div class="main-content main-frm"> 
        <form id="afocus" method="get" accept-charset="utf-8" action="http://.../userlist.php"> 
        <div class="frm-form"> 
            <fieldset class="frm-group group1"> 
                <legend class="group-legend"><strong>Find users</strong></legend> 
                <div class="sf-set set1"> 
                    <div class="sf-box text"> 
                        <label for="fld1"><span>Username to search for</span> <small>May be left blank. Use wildcard character <strong>*</strong> for partial matches.</small></label><br /> 
                        <span class="fld-input"><input type="text" id="fld1" name="username" value="" size="35" maxlength="25" /></span> 
                    </div> 
                </div> 
                <div class="sf-set set2"> 
                    <div class="sf-box select"> 
                        <label for="fld2"><span>Show users from group</span></label><br /> 
                        <span class="fld-input"><select id="fld2" name="show_group"> 
                        <option value="-1" selected="selected">All users</option> 
                        <option value="1">Administrators</option> 
                        <option value="3">Members</option> 
                        <option value="4">Moderators</option> 
                        </select></span> 
                    </div> 
                </div> 
                <div class="sf-set set3"> 
                    <div class="sf-box select"> 
                        <label for="fld3"><span>Sort user list by</span></label><br /> 
                        <span class="fld-input"><select id="fld3" name="sort_by"> 
                        <option value="username" selected="selected">Username</option> 
                        <option value="registered">Registration date</option> 
                        <option value="num_posts">Number of posts</option> 
                        </select></span> 
                    </div> 
                </div> 
                <fieldset class="mf-set set4"> 
                    <legend><span>User list sort order</span></legend> 
                    <div class="mf-box mf-yesno"> 
                        <div class="mf-item"> 
                            <span class="fld-input"><input type="radio" id="fld4" name="sort_dir" value="ASC" checked="checked" /></span> 
                            <label for="fld4">Ascending</label> 
                        </div> 
                        <div class="mf-item"> 
                            <span class="fld-input"><input type="radio" id="fld5" name="sort_dir" value="DESC" /></span> 
                            <label for="fld5">Descending</label> 
                        </div> 
                    </div> 
                </fieldset> 
            </fieldset> 
            <div class="frm-buttons"> 
                <span class="submit"><input type="submit" name="search" value="Submit user criteria" /></span> 
            </div> 
        </div> 
        </form> 
        <div class="ct-group"> 
            <table cellspacing="0" summary="List of users filtered and sorted according to the criteria (if any) you have chosen."> 
                <thead> 
                    <tr> 
                        <th class="tc0" scope="col">Username</th> 
                        <th class="tc1" scope="col">Title</th> 
                        <th class="tc2" scope="col">Posts</th> 
                        <th class="tc3" scope="col">Registration date</th> 
                    </tr> 
                </thead> 
                <tbody> 
                <tr class="odd row1"> 
                    <td class="tc0"><a href="http://fi.smartfoorum.com/user/2/">admin</a></td> 
                        <td class="tc1">Administrator</td> 
                        <td class="tc2">1</td> 
                        <td class="tc3">Yesterday</td> 
                </tr> 
                </tbody> 
            </table> 
        </div> 
    </div> 
    <div class="main-foot"> 
        <p><span class="item-info">Users [ 1 ]</span></p> 
    </div> 

The problem was resolved when to uninstall the official extension "Admin add user".

The error messages such

Warning: require(./extensions/pun_admin_add_user/lang/English/pun_admin_add_user.php) [function.require]: failed to open stream: No such file or directory in /home2/.../userlist.php(319) : eval()'d code on line 13

Warning: require(./extensions/pun_admin_add_user/lang/English/pun_admin_add_user.php) [function.require]: failed to open stream: No such file or directory in /home2/.../userlist.php(319) : eval()'d code on line 13

Fatal error: require() [function.require]: Failed opening required './extensions/pun_admin_add_user/lang/English/pun_admin_add_user.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home2/.../userlist.php(319) : eval()'d code on line 13

I installed several PunBB 1.3.2 forums and the same error in all. CSS is missing and a large part of the page.

http://img26.picoodle.com/img/img26/3/2/12/f_punbbuserlim_6d459e8.png

The page is "User list" shows only a part.

Starts here:

<div class="main-head"> 
        <h2 class="hn"><span><span class="item-info">Users [ 1 ]</span></span></h2> 
    </div> 
    <div class="main-content main-frm"> 

And ends here:

<div class="main-foot"> 
        <p><span class="item-info">Users [ 1 ]</span></p> 
    </div>