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.
They are obviously monitoring changes to those files, but you could probably bypass this by copying the stats.py as a seperate file ( stick it in the gamemodes folder ) and then load it from the gpm_cq.py so that it runs alongside the existing stats. Maybe even rename the functions to ensure no coflicts.