Here is a working version by powerups.ru
just start it and click the only one button in the first window/dialog now you can use
F1,F2,F3 ~ Hood, Spoiler or Bodykit freeze
1. take your car
2. change the car model with Art money to some car with good bodykits ( SKYLINER32, RX7RZ, JAGUARXKR )
3. goto aftermarket shop -> freeze the part what you want to freeze like the spoiler... or hood ( you can only freeze stock parts so please remove the old bodykit before... )
4. change back to original model
5. take your bodykit -> install it
6. leave the aftermarket shop
7. you will get a message by default "there some parts not installed" click yes
8. go to vinyl shop and take some vinyl for ex. nfs icon for 0$
9. save the vinyls to save the bodykit on the server
10. finished.