Well, for one, our server is on site, which makes it pretty easy for me to get at it and do things.
Secondly...
I set up an admin/admin2 and checked differences. The only differences were the files added for EP.
So I tried adding the files one at a time to the admin2 directory, refreshing the site every file, waiting to see which one was breaking it. It turned out 3 files cause the admin login to stop coming up.
admin/includes/extra_datafiles/easypopulate_filenames.php
admin/includes/functions/extra_functions/easypopulate_functions.php
admin/includes/languages/english/extra_definitions/easypopulate.php
Any of those three files cause the admin login to stop showing up. The page just goes completely blank. View source comes up completely blank when you check it.
If I log in to the admin without those three files, I get to the admin page, but a slightly broken version of it. The bar is still across the top, but missing certain dropdowns, like tools... and if you click on any items, you don't really go anywhere. If at that point, I add one or all three extra files, I get a completely blank page again.
I really don't know php well at all, and I hate asking other people to do my work for me, but I'm seriously at a loss here. I got one of the other guys in the office who actually knows a decent bit of PHP to take a look at it, and he didn't have a clue either, although he didn't really dig into the code or anything.
I did notice that the temp folder from my zip download of EP has an Attributes, Category, Froogle, Full, and Price/Qty exports in it already... and an index.html... Basically as if the guy just zipped up stuff off his site and threw it out to the community. Is there a chance he has a configuration setting flipped somewhere that needs to be put back to a default? I didn't see anything looking through all the EP files, but again, I'm not familiar with the program or PHP much. Is it also possible that anything in that temp folder (the upload folder) would affect the stuff in the admin file? I wouldn't think so pre-installation... I haven't even run the sql script yet, since I can't actually get the admin panel to open up with the files in place.
I've also tried the URL forced install path mentioned in install.txt with all files in the directories, and that didn't do anything either.
For reference, the exact "install" file I'm using is the one with the most recent date, obtained here (maybe this is what's getting me?):
http://www.modhole.com/modhole/index.php?module=documents&JAS_DocumentManager_op=viewDocument&JAS_Document_id=2
Is there a very slightly different zip I can get somewhere else on the site?
Thanks again for your effort chadderuski... every idea gets me a little closer to getting this working...
I really don't want to dig through the SQL tables and write a query to do this the long way for a couple thousand items. Not to mention I couldn't hand it off to our sales guys then, cause they'd be clueless as to how to do mass price updates or add 500 new items whenever we get a new vendor if they had to use SQL queries.