OK you have to have the latest Kai release. Make sure you have a Kai gamer tag and pwd. Fire up Kai on your PC, hit Start Kai engine. On your XBox make sure you have your gamer tag and pwd defined in the XML. Once thats all done and the Kai engine is running on your PC, launch XBMC, hit the Kai button, and you should see your gamer tag , below it a menu that cycles from Games, Friends and Arenas. Choose an arena, Xbox->First, 3rd person shooter, sports, driving, etc. Then choose a game, then youll see a list of all other people in that room. If you want to play, exit back to the main menu of XBMC, hit My Programs, find the game you wanna play and fire it up. This is not a only-on-your-xbox-solution, you must have the Kai launcher on your PC as it works with Ava/XBMC/whatever dash that has Kai integration. Also make sure your PC and XBox are on the same subnet, Im not sure if Kai can 'see' across them. <