[Andreas]

Simple, but not efficient --- not recommended for larger forums

cache_ordered_forums

PHP Code:

$forumcheck = end($vbulletin->forumcache);
if (!$forumcheck['sorted'])
{
    function forumsort($forum1, $forum2)
    {
        return strnatcasecmp($forum1['title_clean'], $forum2['title_clean']);
    }
    uasort($vbulletin->forumcache, 'forumsort');
    $lastforum = end($vbulletin->forumcache);
    $vbulletin->forumcache["$lastforum[forumid]"]['sorted'] = 1;
    build_datastore('forumcache', serialize($vbulletin->forumcache));
} 


Edit: Code optimized, should not cause any serious overhead any longer
Still not recommended to be used in a productive environment though.