this will be pretty tricky to accomplish. the forum will use it's own registration scheme with it;s own database
it will require hand coding have site registration through security assist automatically create a registration in the forum system as well.
you would also need to code the site login page so that it logged into the forum database as well as login into your own database, this is beyond what we can help you with through this forum, if you need assistance with implementing this, we could help in ap premiere support appointment.
