Thanks, that means that I can play my other saves while I try to fix this.

ANd sorry, I guess the second question wasn't very clear. The thing is that I remember that in other versions a CTD in one game would affect ALL of the saves and the game itself, eventually causing it to crash without even starting a game. I meant that if something like that could happen because of the CTD.
Thanks. I'll try the cheats to avoid rebellion tonight and post the results.