so what im wondering is:

i just got an 360 and i know final fantasy 11 is on the 360 and i was wondering do we still have to pay the monthly bill or do we just play it through xbox live? because i have xbox live and that would be awesome.

You have to pay monthly, still.

but what im trying to get at is we can play through xbox360 and not the PC or not?

This is how you play FFXI through the X-box 360.

First, as you are aware, you need to have an X-box Live Gold subscription and a ADSL internet connection. Second, you need FFXI itself.

Thirdly, you are also required to subscribe to Square Enix's PlayOnline network, and then get a FFXI account, which has a monthly fee completely seperate to X-box Live.

Yes, that means you have two bills to pay in order to play FFXI, and yes, it may be a little on the dear side ($12.95 US a month for one FFXI character - the PlayOnline subscription on it's own is free however), but at least the first month is a free trial period.

And no, there is no way around these fees either.