404 error after install

I just finished installing a multi site for gallery. The only problem I had was during the plugins install it would hang at quota. I had to restart the plugin install and everything seem to finish fine. When it is done and I click on go to your site I got a 404 error on the url http://www.woolwichwild.com/gallery/bantam_ll/GALLERY_MAIN_PHP

At first I didn't have a config.php ile so I reinstalled it but I still have the same problem.
I don't understand where GALLERY_MAIN_PHP comes from. I don't have a folder or file with that name.

Gallery version (not just "2"):
PHP version (e.g. 5.1.6):
This is installed on a 1and1 server
Database MySql 5
Operating system Linux
Browser Firefox 2.0 and ie 6
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