Burnout paradise question!?

check it out. I want to get trophies on burnout. I got the game when it first came out in january of last year. but, when it first came out, i didn't have ps network, and so i couldn't get any trophies. I got very far in the game, but don't have the ones I already have. I got the burnout license, and now that i have ps network, i notice that a lot of the trophies the system says i don't have i have already earned So, is there any way to get the trophies i already earned without starting the game over?