Help! Back-up ISO problem!

heres the problem. I have a 1.5 firmware PSP and umdloader with a few backup ISOs(have to carry around less disks). one of these games has firmware v2.0 upgrader requirement, and therefore i cannot play it with my ISO loader. i have downloaded MPH 2.0 game loader, but the process never seems to work for me(complicated instructions).

i would like to know if there is a way to replace the 2.0 files in an ISO with 1.5 files from another game, and if there is, i would like to no how to.

thnx

This is your first and last warning my friend as part of the Crackdown on the PSP section. Remember that the staff is closely watching you now.

READ THE RULES. PSP piracy hurts the scene.