the answer to your question is in this thread, When I ran vBulletin 3 and installed her hack (which this is based off) I had it working on an external page, as well as my forumhome. You have to add some code I think to either global.php or another file. The answer is somewhere on the first 15-20 pages of this thread.
https://vborg.vbsupport.ru/showthrea...latest+threads