Ok i got it to work mine would freeze or just not start at 0% loading. So before the trophy screen comes up hold the PS button down so it gets you into the PS pause menu and keep moving the buttons while the trophy screen loads up in the background. This will keep the ps3 from freezing and not loading the trophys. This method worked for me first time i just waited in the pause menu while moving the buttons for like 2-3 mins.