Be very very very careful when seizing the FSMO roles. Typically, you would
only seize an FSMO role if/when the Domain Controller that held the role
went down ungracefully. You would then use NTDSUTIL to seize any of the
roles that the downed DC held.
You typically want to keep this option in the back of your mind. What you
would want to keep in the front of your mind is the process by which you
transfer roles from one existing DC to another. For this you can either use
the MMCs ( as others have suggested ) or ntdsutil. NTDSUTIL is a very
powerful CLI tool. I would really suggest that you install WIN2000 Server
on an available machine and play with it in a test environment. It can
really save your behind However, it can also put your behind in a sling!
Please look at the following two MSKB Articles on transferring FSMO Roles
from one DC to another ( which is what you want to do in this situation at
this point ):
http://support.microsoft.com/?id=255504 ( ntdsutil )
http://support.microsoft.com/?id=255690 ( MMCs )
HTH,
Cary