I've been on the vBulletin page again....
http://www.vbulletin.org/forum/showthread.php?t=260783
http://www.vbulletin.org/forum/showthread.php?t=233234
http://www.vbulletin.org/forum/showthread.php?t=236888
http://www.vbulletin.org/forum/showthread.php?t=265941