Save file location?

[KungFuOpera]

Where does this game keep its save file? It's horribly designed with one single slot, and apparently Games For Windows felt that starting over would be a good idea by destroying my save. If I can't recover the time I've already put into this game, I'm done.

[sanmal]

c:\Users\"username"\AppData\Local\Insanely Twisted Shadow Planet\

[Geist]

Did you double check so you where logged in to the right GFWL account? Happened to me once