I haven't modified robot_functions.php, but here is my config.php file (with a .txt file extension):
http://search.napathon.net/includes/config.txt
You'll notice that I have some mods in it. I removed the database connection lgoic and made a separate file. Same thing with the admin username and password. Both files are in a directory that is not publicly accessible. Everything else should be pretty close to the "out of the box" version.
Hope this helps.
