I assume this is following on from
http://tremulous.net/forum/index.php?topic=3586.msg165785#msg165785 ?
Your server is sending heartbeats to the master, so if it's not listed then the master isn't getting a response to its getInfo requests, which probably means it's your firewall in the way. You probably need to either open the ports, or
forward them if you have a nat. (It's port 30720/udp)
In the output you posted up you had your GUID, so change it before getting admin anywhere.
Also in the output something else was on port 30720, which means you probably had a second client/server running. Make sure you run the server before your client, and it properly closes instead of crashing. You may also want to forward ports 30721/30722 just to make sure.