[Gary King]

At the top of your forumdisplay.php, it should be:

PHP Code:

<?php

// jump from forumjump
$goto = '';
switch($HTTP_GET_VARS['forumid']) {
    case 'home': $goto = 'index'; break;
    case 'search': $goto = 'search'; break;
    case 'pm': $goto = 'private'; break;
    case 'wol': $goto = 'online'; break;
    case 'cp': $goto = 'usercp'; break;
}
if ($goto != '') {
    if ($HTTP_GET_VARS['s']) {
        $sessionhash = $HTTP_GET_VARS['s'];
    } else {
        $sessionhash = '';
    }
    header("Location: $goto.php?s=$sessionhash");
    exit;
}
// end forumjump redirects

Make sure that's what you have, if not, then try replacing what you have with this and try again.