Syncronize login status between vbultten and fblogin site

Closed - This job posting has been filled and work has been completed.

Job Description

There is are site using Facebook login and id/password login.
The site have BBS using vBulletin.

We would like to sync login status between them.

If the user has logged in to the site, the user should be logged in to BBS.
If the try to login to the site, the user wil redirected to login page of the site.

Skills: facebook