How do you transfer PSP gamesaves that you download to the PSP

you can do it Installing PSP Save Game Data First you have to download the save game data

1. Open the *.zip file you downloaded.

2. Inside the zip folder you will see a folder with a name, usually starting with a "U."

2B. Drag that folder to your desktop.

3. Now connect your PSP and enable USB Mode then "Click Open folder to view files." (An alternative is to go to My Computer, and open the PSP drive from there.)

4. Now you will see 1 or 2 directories (PSP and maybe MP_ROOT). Open the PSP directory.

4B. Now you should see three folders (MUSIC, PHOTO, and SAVEDATA). Open the SAVEDATA folder.

5. Now you should see some folders with funny names (depending if you have saved any games). It is a good idea to back these files up before continueing.

6. It is now time for the final step, and it is a simple drag-and-drop. Drag the folder that you have on your desktop (The one from step 2B) to the SAVEDATA folder (if it asks to overwrite, select YES TO ALL.

You have sucessfully installed a save file!

just look at this site

http://forums.qj.net/f-guides-general-psp-42/t-installing-psp-save-game-data-13807.html