OK...I finally resolved this. Thanks to all for the advice and patience.
I found a Windows setup disk that had Norton Disk Doctor on it. NDD determined that something (I can't remember exactly what it was) was wrong with the boot sector of the disk. In fact when I tried to re install Windows, it refused because it couldn't recognize the partition type.
NDD fixed the error, and I'm back in business.
Since this is a learning experience, ...what would have caused this? I simply tried to run a newly burned CD of knoppix, and all hell broke loose on my boot drive. One thing that comes to mind is the CD burning software that came with the sony burner asked a question while burning the knoppix image. It asked if I wanted to use a standard bootable image or one from a floppy that I would provide. I chose the standard thinking I didn't need anything fancy, and that I wouldn't know what to provide anyways.
Hopefully someone can figure this out, so that another newbie doesn't do what this one did