Shoutbox

When I try to
     Reinstall or uninstall from add/remove programs or
     Reinstall or install from Windows Office XP CD

I get this:


I also have Windows Office 12 [Beta Tester] Installed, but everything was working before with both installed.

There's nothing wrong with the CD.

At this point, I have the following installed:
     Office XP - Just Frontpage installed
     Office 12 [Beta] - Everything Installed + Frontpage

What I was trying to do was install everything on XP as well because there's some errors on beta which means I can't do my work etc. But I keep getting this error. I can't see that they would conflict because it worked before with both installed.

Sorry if it's a little confusing, ask questions if you need to

Thanks for any help.