If you have a playstation network card, you can download anything from the playstation store, as long as you don't exceed the money limit on the card.
Must have broadband or DSL and not a telephone Dial up or mobile phone connection or the Hughes network or some USB WiFi
You can sign up to the PlayStation Network by going into "PlayStation Network" on the XMB, then click 'Sign Up to PlayStation Network'. Or you can follow this link to sign up on your computer, then transferring your account to your PlayStation 3 console. http://www.us.playstation.com/PSN/SignUp
You name any new dial-up connection as you create it, you can name it "private network" if you'd like.
No because you need a router to connect to the playstation network
Network has been back up and running for over a yearThe PlayStation network was shut down on April 20 2011 and it is not known when it will be back on The related question has details and will also be updatedsee related question
PlayStation should be back up in a few weeks
PlayStation has announed that they will have it up before may/31/11
Get an Xbox.
No.
It is the Playstation store and you have to have money in your Playstation Wallet from either a credit card or a Playstation Network card you buy where most video games are sold and then charge up your wallet
using a dial-up network or a broadband network