How to Sign up for the Playstation Network on Ps3?

How to Create a PlayStation Network Account

Open PlayStation Network from the menu.
Select Sign Up > Create a New Account New Users > Continue.
Enter in your country/region of residence, language, and date of birth, and then select Continue.

Can you Still Access PlayStation Store on PS3?

False. PlayStation will not be shutting down its servers or store for PS3. While they'd initially announced they would close their PS3 game store, the company later reversed the decision.

How do you Sign up for PlayStation Store?

Go to the home screen and select the profile picture.
Select Switch User > Add User > Get Started.
Select Create an Account from the sign-in screen.
Enter the necessary information.
Verify your email address. Check your email for a verification message.