I hope this helps someone and a lot of credit goes to the creator of the file ECF provided here. I used his to create a more advanced config as well as more idiot proof, for people like me. Whats new in this one, well lets see...
1) Support for more mods (i.e. Iroc, LateModel Stock, ASA2004, Arca, Aero88, GrandNational 1970, GrandNational 1970 v2, Hooters Cup, The Pits Touring Championship v1 & v2, as well as support for the already existing mods such as Busch, Trucks, and TransAm).
2) Option to type in a car file name for each available mod for the server to use.
3) Added options for the Sierra username and encrypted password and removed the defaults for security. If you dont know your encrypted password you can get it by starting NR2003 and login to Sierra using the server username and then logoff. It will be there in the player.ini for "epassword".
4) Added server race options such as driving mode, damage control, and pretty much every option on the race setup screen right on down to the weather and even be able to add computer opponents.
5) Did a little clean up so that only applicable items would show on the page. For example if you turn off road course ratings then you wont see the options to set the rating.
6) Changed most options to a selectable option to help prevent someone from going outside of the boundaries. There are a few that I didnt as they are huge ranges but they have their limits listed in the description.
Remember to configure your options from the config files in tcadmin. NASCAR_Racing_2003_Season.txt