Been a while since this program was updated but Edison Carter has finally released an update for BOTH the LCS Cheat Device and the VCS Cheat Device.

This new PRX version has been modified so people who use custom firmware on their PSP such as OE & M33 can now get that extra kick out of the PSP versions of Grand Theft Auto. Both versions come with edited PRX's for pre-3.71 M33 firmwares and the actual 3.71 M33 firmware, so everyone should be covered.

Download v1.0g for Liberty City Stories
Download v2.4 for Vice City Stories