is everyone on the web retarded?
valve just issued a major update, changeing the engine version, and breaking every single mod.
thus, zm wouldn't work. if you haven't noticed, most other servers are all fucked up too. about 8 topic on this site deal with the update and talk about how all our servers got fucked.
zero's working his ass off to put stuff together, but so far only gg and ub are back up. be patient, look into stuff a bit more, and have a nice day