site registration & registration fields

Hello,

I am looking to integrate webwiz forum into my site.  My site, as well as the forum, requires a user to register.  rather than have him do it twice i need to modify my site to handle both of these simultaneously

for simplicity i have decided to use the wwforum registration page to handle all regstrations, and then add my own code to register.asp to update another .mdb

my first question is, has anyone done this before and if so, are there any pitfalls . (also where exactly do i add the additional code)

secondly, i dont want certain things in the wwforum registration page ie Aim, messenger, yahoo stuff. and i also want first name and second name to be seperate fields.  can this be edited easily without affecting up other pages. (eg profile.asp)

basically i need some help with site-wide registration/login issues!

thanks