I, like you, wanted to go back to ie7. I uninstalled ie8 in Add/remove programmes and IE7 popped up to install. In the end I solved the printing problem I had with ie8 (Easyweb Cannon toolbar freezes up ie8) and have reinstalled it. What, incidentally, was the problem you had with IE8?
I found it very slow in opening 'new' blank web page, and didnt like google opening at this stage. I have recently installed kapersky 2009 and believe that pc has slowed slightly after using mcafee. Like i said i never wanted to install it as i usually like to research it and see how ie8 performs out there