QuickBooks 2006 Error Message? Can’t install?

Hi, everyone! I have been unsuccessfully trying to install Intuit Quickbooks 2007 for the past week.
After numerous failures, I relented to trying QB 2006.
This also failed. Each time I tried to install either one, I was given an error message that reads as follows:

Error Installing.NET 1.1
(Error:1603) There was a problem installing “Microsoft .NET Framework 1.1.
Note the error number and type this in a Web Browser
www.quickbooks.com/support/install.html
Why can't I get this to install? I am at a loss for what to do. Any advise on the matter would be appreciated.
Thanks for all the support!
I am ready to get this resolved!
