Forum:DLC Add-on problem

I recently bought 4 of the DLC Add-ons from microsoft for the Xbox360. They are on the harddrive, but I am getting no radio signals, and the ferry for Point Lookout is also not showing up(after a week). In the Fallout start screen, if it has anything to do with it, "downloads" is unclickable. Does anyone have any ideas? Oh, and they are definitely same version/language as the game.