Okay, let me see if I can put all of this together.....

Original plan:
Create an brand new Zen Cart in a separate folder with the latest version...... DONE
"Upgrade" the New Zen Cart DB with the LIVE-Site DB..... DONE
Make Cosmetic changes (little to no DB changes) and TEST all Functions.... DONE

This is where I'm at now!

I believe that I'm ready to go LIVE....

My thoughts were to "update" the NEW site with the LIVE Site-DB once again to make it most current!
(This is where I'm stuck right now without the "upgrade" button)
Then a few more tests to be sure all is working.
Finally, I had planned to point my Domain to the NEW Site Folder to go LIVE.....

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So, with all of that said, maybe the easiest completion is to rename the New Site Folder to the Same as the Old, and point the "configs" to the Old/Live DB as well.....!!

Does this make sense, and is "renaming" the easiest way to finish this?

Thanks for all of the help & patience!!