Hi
Having just decided to do the update to 2003 by myself using a variety of tools, I backed up my 3 main files, cars.wad, gp4.exe, and anim.wad. I updated the helmets, names, track graphics, cars, menu graphics, basically everything. I ran the game, it worked, so I backed it up again. Realising Toyota pit crew was wrong I thought I shall do that as well now. I put the 2003 pit crews in using CSC4 and it crashed my game, luckily I had backed up my anim.wad file.
Basically, if your game screws because you just updated pit crew graphics, its your anim.wad.
Korn_Freak : You can update pit garage graphics using Ricardo Lamberts Tracks found in the download section.