Hello,
For IE7 Beta2, pls follow the directions to correctly uninstall if you dont want it, I tried to uninstall and could not, then I did a repair install of XP hoping IE6 would come back, but IE6 and IE7 did not work. MS Support did not have an answer either, on the phone or in their KB or newsgroups.
For FF, I found I was cleaning out a lot more spyware/adware than with IE. Additionally, I could not load a lot of webpages with FF...although I never tried to tweak it, it was just a temp fix until I could reinstall XP completely.
Have not tried Opera...but maybe I should.
Thanks all.