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.
I have not heard of it infecting the xbox, if you have modded it to run Win2k somehow, then you will be able to run a virus scanner. The best way is to use the McAfee stinger tool, its small and fast.