how can i get averygpfan's 2002 performace in to patched gp4??

Well the title says it all really! ive installed the car.wad and anim.wad but i don't know how to get the performance file into gp4 patched version. With the non patch version i would use performance editor 1.2 but it doesn't seem to work with the patched version of the game and says the gp4.exe is invalid or missing and that i need a decrypted exe, which i have!!!???


Please help!!

BYF