Fable TLC freezing because of corrupted autosave, can anyone help me?

I know this is a long shot at this point, but here goes: my brother started playing Fable: The Lost Chapters for Xbox yesterday, and today his autosave got corrupted. This normally wouldn’t be a bad deal, because he saves in a regular slot too, but here’s the catch: his regular save is at the beginning of a quest, in the quest zone, so it autosaves as soon as he loads. And (I assume) because the autosave slot is damaged (the game says as much), it freezes up while trying to save to it.

Any ideas? Is there any way to delete just that one specific save from the hard drive so he doesn’t have to start over?