Hi, 3 thing's have arrived, done some reading, but so many way's, and firmware, so have done as you said, downloaded, 620 PRO PERMANENT, but have just extracted it to a usb stick for now, so now have 3 folders.
620 PRO PERMANENT
PROUPDATE and FASTRECOVERY, hope that's right, don't have a psp usb, but have a card reader.