After Uninstalling IE 7 - Getting Web Sites From Addresses Posted

I tried using IE 7 and was not impressed and had some problems getting to web sites from addresses posted in emails that I normally have done for years on trusted sites. I am running XP Pro SP2. I tried doing a registry cleaning after deleting IE 7 and finally had to do a system restore to prior to installing it, but now I am getting the same problem again. The normal browser I use is Firefox 2.0 combined with using Outlook as my email program.