Hello, my attempts to run ZP setup gives me a page not found error.

I uploaded everything into a folder called "gallery". I confirmed that mydomain.org/gallery is neither a page nor a section within Textpattern. Pointing to mydomain.org/gallery/zp-core/setup.php or just /gallery/ gives the page not found error.

Any suggestions?

I'm running PHP version: 5.2.3

My root htaccess contains:
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^(.+) - [PT,L]
RewriteRule ^(.*) index.php

thanks for any advice...

Not sure what the problem was. After deleted and reinstalling everything as before, things work fine. Great in fact. I'm new to zenphoto and very impressed.