ofw is up to 6.20 so the only way you'll be able to play it is if you upgrade. I wouldn't worry about trying to play ftb3 online with cfw cause you won't be able to even start the game. Also, the game has been delayed to feb. or something like that. poorkingz also said that there might be use of a voucher code so even if you get the game to start and sign into psn without a voucher code you still wont be able to get online, since you can only use a vocher once.