i want to use Firefox for everything, but when i open MSN or something and go to check my mail it opens IE, even though i have Firefox set to default, anyway i can fix this, or should i just Delete IE?
well, you can't really delete IE, seeing as how it's required for windows updates. The most you can do is remove the shortcuts from the start menu.
But your problem is that you are using MSN, something that makes IE look like a decent piece of software.
The only solution is to stop using MSN.