ok first off i made this for cfw not lcfw IE 1000 and (hackable)2000
it writes to the flash and works.
it freezes if you load it through 'ultimate vsh menu'
hold r and turn on the psp
when your done click on restart vsh or shutdown because exit freezes
the install menu has 4 function which all work
1) install (makes a backup of original recovery then installes the new)
2) restore original(restores the original recovery menu)
3) about(tells about it)
4) exit(exits the program)
here is the link