Does not matter what path I try to use to do the U/G, failure is the result. From the 1 click upgrade Module > Configure it says my version is NEWER than the current (tells me I'm from the future!). Also, now that the 1-click upgrade module is installed if I go to Advanced Parameters > 1 click upgrade I see the same module interface with the same results.
Before installing that module I got a different error (Controller not found).
I /was/ using CloudFlare caching. Am no longer, but getting the same errors.
Your point about the manual upgrade is a very good one!
I am in the middle right now of transferring registrar and DNS to all in-house, which should be done in a few days, tops. Will try again then.
If THAT fails also then it looks like I may be paying PrestaShop to do it!!!
Deep thanks to all you folks. I'll keep you posted!