Hi Ashley,
Still a "no go" until CCM 6.1(2);
Prior to Cisco Unified Communications Manager Release 6.1(2), you cannot change the host name of either the publisher node or subscriber node after it is installed. If you must apply a new host name to a server, you can delete the server from Cisco Unified Communications Manager Administration (System > Server) and then reinstall the server with a new hostname. Also, be aware that a DRS backup that you take from a server with a particular hostname cannot be restored on a server (either a publisher or subscriber node) with a different hostname, even after you reinstall that node.
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/install/6_1_1/ipchange/ipchg611.html
Hope this helps!
Rob