Homebrew developer Andy_maN has released a custom firmware "screenshoot" plugin compatible with the latest build of FuSa. Essentially, the plugin simply allows users to take a screenshot while running any PSP game through TV-out connection.
As always, make sure to refer to the included readme file for installation and usage instructions.
Download FuSa "Screenshoot" Plugin
FuSa screenShoot! [FuSa]