You have to be 18
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
To sign up for the playstation network you must have a master account and be 18 years old. To create a master account go to signup.playstation.net.
It won't. Sony lost their entire database from hackers. So you can't log in, sign up, or download games.
you can join now but not on the website just now because it is down. just go to sign up to psn on the network section and follow the instructions from there (when you turn it your ps3 or psp)
Get an Xbox.
The network is down more information is available at related question
Yes it is
In order to connect to the Playstation store you must sign in to the Playstation Network and select the icon from the Xmb for the Playstation Store.
You can't, you have to wait for the network to come back online, currently the PlayStation website says 1 or 2 days. The network is down more information is available under related question
you sign up and it's free on a psp
There is an option on the xmb menu, under the playstation network section, that says sign up :)
yes to play on the PlayStation network you need to sign in That allows them to ban people who break the rules