Last Month the Japanese try to retrive this mod a little bit more. They played in the at 2pm CET. At the moment the gametracker,com Server Monitorring is off. Hope soon they turn it on. The ranking seems to work.
U got a mac/windows? If you have windows, then you should just run the installer and everything will be ok, mappacks are available on http://www.interstate.kryptonlogic.com/
If you have a mac, then I think theres a zip archive or something