Don't give up yet, your first post and second post are less than two hours apart.
Have you got a router? Or is this a direct connection to the internet? Who is your ISP? Different ISP's use different setups. Provide some information and it will work.
I run Xubuntu, but mine goes through a router. I configured the router once, and now I have six systems, some windbloze and some linux all working.