Forum:Can you please help me?

Hi i need some help. i waited all day for The secret armory om general knoxx and it says that is online on xbox live markedplace riigth noe. but when i log on to borderlands i get a message saying that the dlc has come out and is ready to download but then i lokk in the dowload list thing, i can only se the 2 other dlc which i have downloaded.