I know that this has been asked before but any pointers would be appreciated.

I'm working on something at the moment that has the main site built around a database and UBBt for the forums. I would like to have a single point of access for both rather than people logging in or registering twice on the same site.

I'm quite happy for UBBt to take the data for registration, logins, etc. but need some info on how to do it.