samba - Mar 2003 - Are NT Tools compatible with Samba? && Auto join domains? && Is a patch needed for XP?

Do things like the User Manager for Domains work transparently with a
Samba PDC in 2.2.3 (if so how, since my first attempt failed miserably).
Similar to my other post is it even possible for a machine to join a
domain with out manually editing the passwd file and stuff? Someone told
me it is but I can't get it to work thus far (namely what account do I
use to add the user).

Thanks,
Steve