Greetings All!
I fixed my problem

! I unistalled IIS (I had nothing to loose) and then reinstalled IIS from the hard drive instead of the XP CD. The only change to the default setting that I made was enabling FTP services. Now my console root shows the IIS 5.1 branch in the tree, with the corresponding default files, and the Internet Information Services (IIS 6) Administrator branch, with the necessary files.
Question: Is Information Services (IIS 6) Administrator for IIS 5.1?
Thanks for your help!