How do I play M Effect 2?

I've been having alot of trouble with this game(xbox 360 version)! So here's the story.. It was working fine and than we bought the new "slim" xbox 360 and transferred ALL of the data from the old one to the new one. and now whenever I try to play M Effect 2 it won't let me. An error pops up that says "We can not load your game because you do not have the download-able content installed Firewalk Pack, Zaeed Mani, Normandy Crash Site" BUT I DID redownload them with a DIFFERENT profile(bcuz the one I want to play on does not have live). and than it worked, BUT only for that one profile I downloaded with, and even than you must be signed into xbox live. so how do I get M Effect 2 to let me play again on my non xbox live profile? Please help. Its driving me insane i've tried everything I can think of and just can't figure this one out! thanks -Evelyn