[Zachery]

Originally Posted by ozzy47

Did the op say anything about a different server?

Originally Posted by brandon515

This is going to be called from a different website, so wouldnt I need to use the full url of where the forum resides?

Context is important I suppose

If both sites are not on the same server, then you can't do what you want all that easily, in some cases even if it is, it may prove difficult. Session/Domain checking is not likely to work well cross domain.

I would suggest using something on the vBulletin side of things to send an auth token to your other site, to authenticate them when they leave to go to your other site.