User generated content

Can someone help me please. My account was hacked into a couple of days ago and I already filed a report to Xbox live, changed my gamertag and passwords extra. But now it’s telling me that I can’t play custom games with my friends because apparently I have user generated content on my Xbox. But this is not true please help me. please help me I am begging you.

http://www.bungie.net/Forums/posts.aspx?postID=50050961&postRepeater1-p=1#50051596