Integration gone bad?

Okay here my problem, www.b-landia.com got the usual integration + login mods

<?php
define('PUN_TURN_OFF_MAINT', 1);
define('PUN_QUIET_VISIT', 1);
define('PUN_ROOT', 'forums/');
include ('./inc/login.php');
require PUN_ROOT.'include/common.php';
?>

but the problem is that the site don't seem to work anymore the code:
<?php
if ($pun_user['is_guest']) {
  echo "tis an taht";
    }
else {
echo "Nope?";
}
}
?>

this code should show something IF you were logged out but it don't seem to work, can you point me in the right direction?