Hi,
Ain't got vbulletin as yet but considering getting it in the next couple of months. I currently use Invision Board, and we have an API which allows the login to be used throughout the site. The one for Invision Board is here:
http://forums.ibplanet.com/index.php?showtopic=7834&hl=
Just wondering if there's anything similar being done, or that's already been done for vbulletin.
Cheers for your time,
Mark