Instructions
Turn the PSP on and scroll to the "Settings" icon on the main menu. Select "Network Settings."
Select "Infrastructure Mode." Select "New Connection." Select "Scan" and wait for the PSP to scan for wireless networks. Select your wireless network. If applicable, enter the wireless network's password.
Select "Easy" as the address settings. Enter a name for the wireless connection on the PSP (by default, it will be MyConnection). Go over the information you entered and press the "Right" button on the directional pad. Press the "X" button to save the settings.
Select "Test Connection." After the test is complete, the PSP will automatically connect to the network.