Just had a look now everything looks fine
Have you been told about the boilerplate and php docs that we put at the top of all core files within Moodle?
Have a read of http://docs.moodle.org/en/Development:Coding_style#Documentation_and_comments if you haven't.
Basically you need to add the license notice and a phpdoc section to the top of each page. You can just copy the license notice from the files section of that doc.
The phpdoc section should describe the change, provide the name of the copyright owner and define the license.
The following is an example of what you might add for the above settings file.
* This file contains the settings for the non-zero theme.
* Currently you can set the following settings:
* - Region pre width
* - Region post width
* - Some custom CSS
* @package moodlecore
* @copyright 2010 Dietmar Wagner
* @license http: */
Something like this should be added to all of the PHP files you add to core, in the case above I used Dietmar as the copyright holder because you mention that he provided this page, however for the files you create+add yourself put your name down there. Some people also put an email address as well, that's up to you. For more examples check out the base theme's config.php or any of the other php files in moodlecore.
If you have any questions let me know