Little Big Planet Downloadable Content Issues

Might be the wrong place for this post. But I downloaded the following bits of DLC:
-Little Big Planet Kratos/Minotaur/Medusa Costumes
-Little Big Planet Metal Gear Solid Costume Pack
-Little Big Planet Metal Gear Solid Level Kit
-Little Big Planet Creator Pack 1
-Little Big Planet Kabuki Actor Costume

I went through the game's tutorial (the first level) and saved my game. Then, I downloaded the content so that the game would recognize it. When I boot up the game, only the Kratos costume comes up. Now I know the content is on the hard drive since:
-It all downloaded successfully and installed successfully.
-One single bit of DLC has a file size of an average of 1067 KB. After all the DLC, the filesize was 1074 KB.

When I saw the content didn't come up except the Kratos costume, I deleted the content and re-downloaded it and re-installed it. I loaded up my game, and it still didn't come up except the Kratos costume. Is there something I have to complete before I can get access to that stuff? Cause if not...I need help. Might have to go so far as to delete my gamesave and restart, which I don't wanna do.