See http://wiki.neurohack.com/transcendence/wiki/install_mods for illustrated instructions on how to install a mod.

You can change the stylesheet at the top of the page by clicking the color swatch color swatch and then selecting the style you like
Cookies must be enabled for this feature!

Your best bet with this is to know some CSS! Download the basic xelerus html (160KB, Contains all relevant files plus .psd for header) style and create a new Stylesheet on your own!
Then send it in and I'll (eventually) add it to the new style sheets!

See http://wiki.neurohack.com/transcendence/wiki/xelerus_rules_and_standards for xelerus rules and standards.

The rating system is a 'Thumbs up', 'Thumbs down' system. When you're logged in you can rate them with the buttons:

Thumbs Up 12 - 4 Thumbs Down

This means 12 people liked the mod and 4 didn't! After you rated the rating buttons will vanish from the rated mod!