Monster Hunter Portable 3rd

[firefall]

Hi,

I want to play on PPSSPP emulator the PSP (non-HD) Version of MHP3rd.

I have the PSP with cfw and the japanese original iso of the game. It run on my psp but not on PPSSPP emulator.

I know that I have to decrypt some files on PSP and replace them with the files from PPSSPP emulator.

But I dont know where I get the decrypting program and I dont know how to use it and I dont know how much files I need.
I want to play online with friends via PPSSPP.

Cn you help me?