This tutorial is a little bit longer. In the end though it will be totally worth it.

DOWNLOAD: HERE

Inside you'll see 4 folders. A 1.0 Version, 1.5 Version, gpSP_kai22_src, and a Hex-editor folder. If you have PSP version 1.5 the go into that folder. If you have PSP version 1.0 then go into that folder. If you have any OE custom firmware then it doesn't matter what version you go into. I suggest 1.0 since there's only 1 folder to put on your PSP. Now which ever version folder you choose you will see a "MS Root" folder. In case you didn't know the "MS Root" is the Memory Sticks root. Like when you first open the PSP in USB mode you see all those folders especially the "PSP" folder. Well if you open up you PSP in usb mode from my computer its kind of like opening the MS Root folder. So open both of those. Take all the contents of the "MS Root" folder and drag them into the root of your memory stick. DON'T DRAG THE MS FOLDER INTO THE ROOT!! Open the "MS Root" folder THEN drag everything inside of it to the root of your memory stick. If it helps just drag everything in the "MS Root" folder next to the "PSP" folder within your memory stick. So you are dragging a "PSP" folder next to your "PSP" folder in your memory stick. It should ask do you if you wish to overwrite click yes to all. These are the ONLY files you need on your memory stick. DONT COPY ANYTHING ELSE IN THE RAR TO YOUR MEMORY STICK.

You're done. Now all you do is find your favorite rom and put it in the "gpSP" folder located in your "GAME" folder. You know you have a Gameboy Advanced ROM because the name of it will look like this pokemon.gba. The .gba is the file extension you are looking for.

NOTE: YOU DO NOT NEED TO INSTALL OR USE THE HEX-EDITOR UNLESS TOLD TO IN THE "game_config.txt". EVEN IF TOLD TO DO THIS ALWAYS JUST RUN THE GAME FIRST THIS WAY IF IT WORKS YOU WON'T NEED TO USE THE HEX-EDITOR.

Reminder: You have access to the GBA ROMs forum. Go to it HERE.