I want to know a few things ... At home, I don't have a wireless connection, however I've visited a friend's house and I wanted to play Patapon 3 in Multiplayer via Infrastructure using his connection.. The thing is that it requested me to have a PSN account..

Now, I've never played any PSP games via infrastructure before and I want to get started... First of all, can I play using Custom Firmware? If I can, then how? (Step by step, I'm a complete Infrastructure newbie)..

If I can't, then.. well, I am fine with buying Patapon 3 and going on OFW for just a while ... But then again, i would need a step by step tutorial .. And, of course, I'd assume that I can go back to CFW afterwards ..

Thanks for your help in advance