You have to sign up to Xbox live. Instructions are here : http://support.xbox.com/support/en/u...nxboxlive.aspx

You will have to pay for some tracks for guitar hero and some are free, same as the playstation network.

Where is your router in regard to the console ? My PS3 literally sit's next to my router so it's wired in, if I put it in the bedroom then it has to go wirelessly through a wall but I still get good signal strength.