Why would you need the logic board on the drive to work if your not using the drive to copy the game from?? Is it because your tricking the PS3 by making it think the games in the drive when your not? - Exactly, some work without a laser, but they all (as well as any application or PSN game) need a working logic board, that's married to that console..
What do you mean a dongle to re-marry? Do you mean change the dongle to factory service mode? - Yes, you also need to get the relevant files on a fat32 USB dongle, but it's only if your logic board is damaged, so you more than likely don't have to worry about it (Google it if you want..).
Do I just get a normal fat32 usb stick and put the files on there - Yes, that's all you need to do nowadays. Unless you need to get into Service Mode down the road (or to re-marry) you don't need a jailbreak dongle.
oralphie: Will this allow chuck norris to play backups??? PLZ HELP!!!