I have spend at least 6 hrs trying to install SQL Server 2008. I am not one to give up. But, I am exhausted trying to figure it out. I have read the pre-requisites and I think I am good to go. I do not know what my problem is. Can anybody please help me here? Here is the last few lines of my log file...

I have a Vista Ultimate 64 with Visual Studio Professional running on an Intel Quad processor. I have installed web components with web platform installer. The following components did not install properly: subtext, umbraco, url rewrite 1.1, application request routing 2.0 beta, dotnetnuke, mojoportal...