Ok this version of the post better answers your two guys (who I thank so much) questions:
The step things first got strange- After I originally ran the zen cart install stuff, I was left with a basic install of zen cart, then after I finally figured out how to drop the new tables so the old ones would import, the site's main index.php started wanting to install again instead of looking like the default already-set-up-site.
So anyways I ran initial install and was left with a default install of Zen Cart.
Then I ftp download/uploaded the old site in it's entirety except the two configure.php files. (but somehow in the process the new /admin1 folder ended up with _configure.php and no configure.php file, and I am not sure if I made the new install refer to /admin1 yet or where I would do that and go to make the new install look to /admin1 instead of it's /admin folder)
Then I messed with unsuccessfully importing the old export of tables until finally I figured out how to drop the new ones and empty them, then the old ones imported without error finally, after about 50 attempts to import them with error.
So here I am: Obviously now index.php still wants to run Zen Cart Install steps all over again and FixCacheKey still draws blank screen indefinitely.
The fact that I have an /admin1 and an /admin folder on the new server, this /admin1 has no configure.php only _configure.php, and this /admin1 was copied over as the dominant one things refer to because its the active one in the old site, (which didnt any longer have an /admin), could this be causing FixCacheKey not to work?
Is FixCacheKey's failure to work the reason the site's main index.php tries to run zen cart install steps and setup another database instead of looking like the old site did ?
I am losing over $250/day off the site to say the least right now, I cant afford to, so I will continue to appreciate and wait for your posts!