[Samba] Samba as PDC for WinXP, Win98 and Win95

[Simon A. F. Lund]

Hello!

Ive just got the lovely job of converting and old Windows NT 4 
fileserver to FreeBSD, ive set up samba before as a simple fileshare but 
this place requires roaming profile login from WinXP, Win98 and Win95 
clients.
My question is whether or not any of you people have any experience with 
this and might be able to give some tips on the way? I've tried fidling 
with it but i cant get my WinXP clients to logon to the domain :(

I need all the help i can get :)

regards
Simon