The 2002 mod is an older mod without any of the configurables found in newer CSM mods.
First make sure you have all the add on stuff. There were updates to the cars and several other things made especially for the mod. I have found physics, performances, new helmet sets, visors, and other stuff done for this mod. All of these updates came after the original mod release.
That said, the 2002 mod has always been a bit bug filled for me. I'm not sure from your description exactly what problem you are having, but I have had too many to list with this mod.
It was state of the art when it was released, but now it is hopelessly outdated. This isn't an easy mod to get working right, especially for a newcomer to GP4....
"There are some pikeys there at Turn 10 putting tarmac down - what do you think of that?" - Martin Brundle