Tried to install the bridge for zen cart; now unable to login to admin section of gallery

The following information is required to get an answer:
Get this information from the PHP diagnostic (in the configuration wizard).
Gallery URL (optional but very useful): http://strataverdeimages.com/Gallery2/
Gallery version: Gallery 2.x
Apache version: Apache Ver. 2
PHP version (don't just say PHP 4, please): 5.2.2
Graphics Toolkit: ?
Operating system: Debian
Web browser/version (if applicable): Mozilla Firefox 3.03

So I've been trying to install the gallery 2/ zen cart bridge. I tried it first using Zen version 1.38a, and it failed. After doing a websearch I saw reports that the bridge only worked with older versions of Zen (1.27), so I uninstalled and attempted a reinstall. Well, I think the two versions of Zen are designed for different versions of php or mysql. Now I can't login to the admin section of Gallery 2. I've tried directly editing the admin user info through the database admin area as well, with no luck. That's assuming that the password was of the md5 encryption time.

I'm thinking the database has become corrupted. I don't have a backup of the database unfortunately. Has anyone else run into this problem?

Thanks for any help!