No.
You need to have a Xbox 360 connected to the internet than you need to buy Xbox live membership. You can buy Xbox live at most stores like walmart or video game stores.
A Xbox360 is a console, the second after the first Xbox. You play Xbox360 games on it and I think you can download or buy a thing so you can play your Xbox games on it to.
In your Xbox 360 box, you might have a free trial for Xbox live gold. You dont just get Xbox live gold free just buy plugging your xbox in with a ethernet.
No.
you buy it from a game shop or you can hit your guide button (big green X in the middle of your controller) sign into your account, and hit upgrade to xbox LIVE!
You can buy a longer warranty but you cant buy it if your warranty you had with the Xbox expires.
You have to buy them on your Xbox or at many retail stores like gamestop.
For xbox360, you can download it on live.
yes there is a gta San Andreas for the Xbox 360 but you have to buy it on the Microsoft store
I own it for PS3 but I'm assuming it's the same way on XBox. You need to find the "Multiplayer" option on your phone. Of course for XBox 360, you'll have to buy XBox Live time as well.
You can not buy Jtagged xbox 360's from any websites like ebay etc because they are illegal.
You buy the game from a store and put it in the drive in your Xbox 360.