Thanks for a very informative reply. Going to try what you said starting from the 'mc-tool remove MSN', however I got my doubts about that one helping because I think MSN is just going to stay on and will still be consuming power. I mean it can't log me in but it's probably still going to try to launch the program and be stuck in the login screen. This is why I didn't even try it yet, had so strong feeling about that.

If all else fails I'll just delete everything by following the link you gave and reinstall everything as I don't have THAT many custom things in my phone anyways. Ty again.