Ok try again please cat. I think your problem is solved. I was just downloading at 2.9 meg. I've played through all 3 maps that are there. They rotate and load. Odd things. When I first log in I get a dm server and can't join game till the round ends nor can I vote on what map. The game will however select the next map and then things work ok. All that takes 30 seconds. I'm still looking at that issue. Also you only die after a round so you get to kill zombies till the end. I don't know if this is a feature of the mod or a glitch ? Ley me know please if it dies again. If its down just reboot the server. It might look like this in the server credentials or the second image. I have a ticket in to for a fix to that.
So just click the link and it will bring you to the server settings.