360 Network Connection Problem

Im trying to connect my 360 to my network connection. Im deployed in the desert and to connect to the interwebs, the internet provider requires that i purchase a log in account and log in through their website. The problem is that on my 360 i cant figure out how log in thru the service provider's web site. Any help?

Can you get to talk with someone at the ISP?

What I think is happening is that the webpage is part of a setup that records the MAC address (each network devices has one) on the computer you're using, and ties it to your account as authorised. If you can make a note of the 360's MAC address and get hold of someone at the ISP they might be able to add it.