Active directory administrator issue in server 2003

[exsupport]

On a new server created a domain. Had to take the domain down to rename the server, recreated the domain. Had to take the domain down again to rename server (Dont ask, long story) recreated domain. Now, trust relationships will not work, server cannot be contacted via other servers, will not accept admin password remotely or an account with admin privelages (Related?) and I have 3 administrator accounts when I look in documents and settings, user accounts. Can I delete the unused admin accounts, is there any other way of returning to a single admin without taking down the domain? I would be grateful for any help you can offer.

[FN-GM]

Can you not recreate the trust relationship?

[exsupport]

No, as the admin password is not accepted so the relationship only works one way, I need two way.

[nicholab]

You might need to deomote then promote the server to a DC. Or look at how the replication is working.