[i300e]

I recently found in a Japanese PS2 with a Japanese BB-unit(Hardrive and Network Adapter) and the Japanese version of Final Fantasy XI with no expantions in a pawn shop for an unbelievable price. I am learning japanese but don't know much right now. I would like to play the japanese version to possibly help me learn more japanese. I have no idea how to start sign up, get through the menus or what address i should use. I have been reading up a little on this forum but i can't seem to find any definate guides. Could some one possibly tell my what information and address i should use so that I will not get suspended by SE and where to use this information when going through the sign up process considering that i cant really read japanese.
Thanks

Oh yeah and I forgot to say that I do have a valid debit card and US address but i do not know anyone who lives in Japan