Quote:

Hang on. Are you saying the Media Creation Tool can only do clean installs? I want to upgrade. I do NOT want to do a clean install. But I have the problem that my upgrade link appears to be broken.

I assumed jbmcmillan was talking about the new tool mentioned in the OP.
Yes, you can upgrade with the Media Creation Tool. Insert the CD(or USB) media, navigate to it and just run setup.exe.