Instructions
Turn on the PS3 and press the right arrow on the controller's directional pad until "PlayStation Network" is highlighted.
Push the down arrow to open the PSN menu, and scroll down the highlight the "Sign In" option.
Press "X" and scroll down to highlight "Forgot your password?" Push "X" to select the highlighted menu option.
Type your email address (which is also your PSN sign-in ID) and push the down arrow to select your date of birth.
Press the down arrow on the controller to highlight "Continue" and click "X" on the controller.
Highlight the reset option you want to use and tap "X". Enter the answer of the security question for the first retrieval option or enter your email address and click "X" to have the new password sent to your email account. Once sent, open the email message from PlayStation Network and enter the new password in the main PlayStation Network menu to access your account.