Combining forum registration Database?

[B_Pages]

I currently own www.bimmerpages.com and I am launching a few other forums.
I want to have it so that if you are a member of one you have the same user name and password to all the forums like this forum I do not own www.bimmerpost.com

If you click on any of the forums that are model specific w/in bimmerpost you will see the stats are all the same - whose on line, members, etc.

Can someone advise how this can be done?

[B_Pages]

"You can use impex to import data from one forum to another. This is free import software available to customers."

anyopne else try it yet?