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.
You must have a custom map or something in your levels folder.. go through it and make you sure you have any maps but the ones that come with 1.8 (lakeside, tsunami, snowpeak, streets, streetrace)