Normally, I never get involved in petty dodge ball games, but this time I just Can't resist. Judging from your post, "Putzmeister" is an appropriate handle for you to use.

There are more than one admin directory, more than one images directory and more than one includes directory in my Zen Cart folder.
That's a new one on me too, and I have 3 HIGHLY modified Zen sites online.

It's actually incredibly simple.
This is So true kbalona! Especially if you read the threads (this one in particular) and ask questions instead of "shooting off at the keyboard".

No one cares that you
but I engineer IBM390 enterprise-wide systems that transact billions of dollars daily
. We just care that you are able to get your cart up and running, and most everyone in the Zen Community is Happy to help. Try asking the right questions instead of snipe hunting and maybe, just maybe, your "bag" will fill up with the right answers instead of those illusive little snipes that seem to be eluding you.

If you really Do have 2 of everything, the best thing you can do is delete it all, re-upload Zen Cart 1.3.7 (only once) re-install and try again.

But, as said before, it is unlikely you have two of anything in the same directories as 2 files or folders with the same name cannot occupy the same space at the same time.