It looks like our server has gone to version 3.X, the Lich King. But what patch level? We tried up through version 3.0.3 at first and got the "overpatched" situation.
I am now going through from 2.4.3 again and I have patched to 3.0.2 and still can't get in. I guess I'll try 3.0.3 and hope that China is already up to that level and that that is the problem.
The realmlist.WTF file has gotten moved deep into the data directory (right?). Is that the only change to watch out for?