cod5hero, maybe you aren't allowing the game to save. right click the game, settings, storage data and 'unlimited'. it's some like that the way you have to go trough, i'm brazillian and it's all in portuguese here, so i'm just guessing the names.
I don't know if it was they who fixed the saving bug, but here it's saving. What I did was: Right-Clicking on game, Settings, Local Storing and then i pushed the bar to the max - ilimited -.