Weltall has released a Save Game hacker for Commercial PSP games to give you max money etc, heres the info:
This is a simple application that i'm working on for months, it contains
a database which is used to patch known savegame to have max money or similar things. Being still a beta version it's still limited in possibility of patching but it can (at the moment only for legend of heroes) asks also what value to patch It can also show the game picture to make simpler finding the correct save
CHANGELOG
0.1:
-first release
-supports showing a list of all the games in the savedata folder
-supports showing the icon0.png image from the selected savegame
-supports these games: Legend of eternia JAP(ULJS00015), The Legend of heroes USA(ULUS10022)
Need For Speed: Most Wanted USA (ULUS10036) and EU (ULES00196), Medievil Resurrection EU(UCES00006)
and kingdom of paradise USA(UCUS98623)
-permits to select how much money to patch in he legend of Heroes
-menu to select available patches (disabled for release)