This plugin is also working on PSP custom firmware 3.80 M33+ and 3.90 M33+
See the image here --> PSP Firmware Upgrade - 3.80 M33 and 3.80 M33-2
and here --> Custom Firmware 3.90 M33

Here's I how I install the plugin:

1. Connect the USB cable to PSP and computer.
2. On your PSP - go to Setting and enter USB Connection.
3. On your PC:
....A) Your PC will automatically supply the drive letter for the PSP memory stick ( example F: )
....B) Go to seplugin folder ( F:\seplugin ). [create seplugin folder if not present.. see note below]
....C) Copy screen.prx (file from PC) to seplugin folder (PSP folder)
....D) edit vsh.txt ( F:\seplugins\vsh.txt ) and type-in or insert on the first line --> ms0:/seplugins/capture.prx
also, edit game.txt ( F:\seplugins\game.txt ) and type-in or insert on the first line --> ms0:/seplugins/capture.prx
["vsh" - if you want to capture when not on a game mode and "game" when you want to capture when you are in the middle of the game)

.... Note: if seplugin folder is not preset, try to create one and load the screen.prx vsh.txt and game.txt on that folder

4. On your PSP:
....A) Restart the PSP (holding R) to enter Recovery Mode
....B) On Recovery mode, go to Plugins and you may enable the creen.prx in the [GAME] and/or [VSH] then go Back and Exit.
....C) The PSP will reboot to a normal start-up.
....D) Take a screenshot with the HOLD Button as capture button in a game or non-game mode. Images will be stored on PICTURE folder of the memory stick of the PSP whenever you press the hold button.



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......... cabanerofr .........