you going to have to have the newest dashboard which is 16547,your going to need to have the newest dashlaunch supporting the 16547 dashboard. if you have those 2 things your just going to have to purchase 2 things. The first thing you need to purchase is XBLSE, this can be found on there website [ Register or Signin to view external links. ] . xblse .com, and this is $20 a day and they will give you the instructions how to put it on the console. Than your going need t buy a KV IF your console is banned and just drag it on the root of your hdd with the xblse files, and bam your ready to host mw2 challenge lobbies online, as long as your updated to tu8 on mw2 and have a tu8 mw2 menu. for further help PM on here or message me on aim: mattpracticul