If they are registered thru Enom. All you have to do is log in at
www.enom.com with your acct name and password. You should be able to access your account.
If the domains are registered thru Enom. I believe all you have
to do is establish an acct with someone else. Setting up the acct is free. And, then you can push it from the old location to the new
location.
I am not familiar with servercentral.net