Instead of getting the fresh install page I get the Repair/uninstall menu. Regardless of which option I pick I get an error code then the install program quits. There was really nothing wrong with it to begin with to be honest, I was just bored and thought maybe it might run a little better if I did this since I did several mods before installing service pack 2. Guess I should have left well enough alone

This is what I get when I try to install it.
"Error 1722. There is a problem with this windows installer package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor."
Then when I click ok on that one I get this one.
"Error: -1603 Fatal error during installation.
Consult Windows Installer Help (Msi.chm) or MSDN for more information."
I'm at a loss here, is there something else I should have deleted that the program didn't and I missed or did I delete too much somehow? I deleted all the files I could find associated with this program, that I could find. After I did the uninstall half the files were still on my computer. There has to still be something there if I am getting the Repair/uninstall menu when I put in the disk.
Help please.
Paul