szczuru has updated PSP2PS3 to version 1.7.3, here is a quote from the change log:
—FIXED: Starting EDAT Tool when user chooses to unpack iso
—FIXED: Issue when function sleep doesn’t exist in system – pause will be used insted of it.
—Extension in output filename is now required
—DONOR.PBP isn’t required anymore. Replaced fake_np with one which doesn’t need DONOR //thanks to Aldo (aka aldostools)