PS3 code and "Playstation network" / "Square Enix" account understanding.

[Steve]

So He will need to have his own PSN account?
He can just put the PS3 code into a SE account?

Yeah he might need to get his own PSN account. When I played the XBOX360 version of FFXI I could only link one XI account to my gamertag and needed a 2nd one to play on an alt account. I think the reason for this was so you couldn't use another persons character for achievements lol.