I understand Koan, and I greatly appreciate your reply.
If I do decide to use it on my own, I take 100% responsibility for doing so....and realize that the consequences in the worst case could be needing to "nuke" the machine and start over from scratch. And even if I do, I would still agree with Koan and others here and strongly NOT RECOMMEND that anyone else do so without the proper supervision.
As far as the guide goes...it's great overall in my opinion, walking you through each screen. That actually was what indirectly confused me. (I've now installed the Recovery Console successfully.) Since everything else is so well documented, screen by screen, when I dragged the Microsoft program (which apparently contains the Recovery Center as part of a much larger package) onto the ComboFix icon, it appeared as if ComboFix was starting to run...as it started to sequence through the blue screens shown in the guide. So my impression was that what I had done was wrong, that the Recovery Console was not installed and that it was going ahead and running ComboFix itself instead. So the first time that it gave me an option (which was the end user agreement for ComboFix), I said "no" to stop the process.
In reality, I now know that it does indeed go into starting to run ComboFix, which is a bit confusing at first when you aren't expecting it and in my opinion is the only weak part of the otherwise fantastic ComboFix tutorial (that part isn't really well documented, again, just my opinion). As I ran the installer again (by dragging and dropping the Microsoft installer again), it started going through the ComboFix process as described, screen be screen. At this point I wasn't sure if it was going to install the Recovery Console or not, but I had read multiple warnings not to stop ComboFix once it was running (which is only logical with this type of software) or to even trigger events by hovering over the window and such. So I just let it do it's thing and watched the process....and sure enough, after the "Scanning" screen but before the "Completed Stages" screenshot, the dialog came up asking me if I wanted to install the Recovery Console, and everything made perfect sense again.
I did so, and then it asked me as the instructions clearly say whether I wanted to continue the scan at that point or not, and I said "no".
I'd like to thank you guys for your site, you for your reply Koan and especially Lawrence Abrams for writing the guide in the first place.