Not sure on the MSN profile thing Typhoid, call MSN and see what response they give you.
As for IE, depending on what happened, you might have screwed over IE. Can't remember if ME has it or not, but you can try repairing IE.
Open My computer, go to control panel, then open Add/remove programs and see if Internet Explorer is in it (might be slightly variated). Click change/remove and click the option to repair.
I can't guarantee 100% its in ME but if it is, try it.
Other then that, you'll have to use another browser or reinstall ME..or just get rid of ME altogether
