I think they're down to their RC1, I saw it last night online.
Well in a few days you´ll have to reinstall anyway so you might as well hold out for that.
FWIW - GSC2012 will not have loose rfm, hdv, tbc, .pm or scn files in folders. So the chances of getting a mismatch running an unaltered install should be zero.
Ooooor, someone might have pulled the plug out of the server so as they can use the wire to boil the kettle for a cup of tea, and failed to plug it back in.
........ so its almost a standalone game.