Simple .php file issue

[JohnBee]

This is a simple .php file used as a module for vBadvanced. Currently it displays a forum by subscription(user subscribes and it display's the list). I would like it to show forums by forumID instead of by subscription.

Can anyone help out with the changes?

<?php
require_once('./includes/functions_user.php');


cache_ordered_forums(1, 0, $vbulletin->userinfo['userid']);
$show['forums'] = false;
foreach ($vbulletin->forumcache AS $forumid => $forum)
{
    if ($forum['subscribeforumid'] != '')
    {
        $show['forums'] = true;
    }
}
if ($show['forums'])
{
    if ($vbulletin->options['showmoderatorcolumn'])
    {
        cache_moderators();
    }
    else
    {
        cache_moderators($vbulletin->userinfo['userid']);
    }
    fetch_last_post_array();
    $forumbits = construct_forum_bit(-1, 0, 1);
    eval('$forumbits .= "' . fetch_template('forumhome_markread_script') . '";');
    if ($forumshown == 1)
    {
        $show['forums'] = true;
    }
    else
    {
        $show['forums'] = false;
    }
}

eval('$home["$mods[modid]"][\'content\'] = "' . fetch_template('adv_portal_fav') . '";');
?>

PS. I asked the original coder for help and he recommended I asked for outside help.