I'm screwed.... I had to reinstall Win XP Pro after having installed IE 7 beta due to BSOD during boot up.... I've subsequently found this in the release notes for IE as I can not access it:
OS Updates--Do not reinstall any version of Microsoft Windows in any way after you install Internet Explorer 7. Do not upgrade in place or upgrade to a new edition. The workaround is to remove Internet Explorer 7 Beta 2, install operating system updates, and then reinstall Internet Explorer.