[Zope-CMF] Custom Membership Database

[HoYin Au]

Hi,

I have a forum userdatabase (structured similarly to Ultimate BB - one user per text file) that I'd like to extend so that users from the forum can participate on several sites based on CMF (currently in development)... I see that one can write customized user interface routines with exUserFolder, but then also see that CMF's got its own Membership Tool interface... what is the best way to make this all work?

-Hoyin