This Is A Guide To Play Homebrew Applications on your PSP With Original Firmware (OFW).
1. Download The "Half Byte Loader" For You OFW
http://wololo.net/wagic/hbl/
2. Extract The .rar Files To Your Desktop
7-Zip http://www.7-zip.org/
Win-Rar http://www.rarlab.com/
3. Connect You PSP To Your Computer
4. Open The Folder On Your Desktop It Should Be Called Something Like hbl-r113-signed-wololo
5. Open You PSP Where It Lists Folders Like This
http://tinypic.com/view.php?pic=t8s20i&s=7
6. Copy The h.bin file And The hbl Folder To The PSP There.
7.Now Open Up The PSP Folder On Your PSP, The Open The GAME Folder
8. In The hbl-r113-signed-wololo Open The PSP Folder Than The Game Folder
9. Copy The HBL Folder Onto The Game Folder On Your PSP.
10. Now Copy Any Homebrew Applications You have Into The Game Folder Onto Your PSP Also
11. Unplug Your PSP And Go To Your Memory Stick Under The Games Tab, Look For Something Along The Line Of HBL Loader
12. Run The HBL Loader It Will List The Homebrew Applications That You Have On Your PSP, Just Go Over The One You Want To Use And Press X