Brian

It looks like you've got something really weird configured with your server setup, or you've got some type of .htaccess file that's causing that. Viewing the source of your pages shows that it's just pointing to those filenames, so it should direct you to those filenames in the folder you're currently in. If you're not able to figure out what's causing it, you may be able to just move the gallery folder up to your root directory instead and that may solve the problem.