Well you've got the first part out of the way, signing up. Most everything you'll need to know are in the forums, RPM links, TS and server information as well as the core.ini we use are all in the global sticky that should be at the top of every forum.
In each series forum there is a link to required templates. You can either paint yourself a car or ask around somebody may be willing to paint one up for you. Track links will typically be posted in the thread for each race.
NR03 Career wins: 15
Career championships: 1