Instructions
Turn on your PSP, and flip the Wi-Fi switch to the "up" position. This will enable Wi-Fi. The silver Wi-Fi switch is located on the bottom-left corner of the PSP.
Use the keypad to scroll through the icons in the main menu's screen of the PSP until you come to "Settings." Press "X" to open settings.
Scroll through the list of options until you come to "Infrastructure" mode and press "X."
Select "WLAN settings" and press "X."
Scroll through the list of available Wi-Fi accounts and press "X" to join the one you prefer. Press "X" to confirm, and you will return to the main menu.
Press "X" to select "Browser," and the browser will open on screen. Use the directional pad to manipulate the digital keypad and navigate to a site that offers a free download for iPSP 2.
Select "Download," and the program will download to your PSP.
Press "X" to restart the PSP when prompted, and the PSP will restart. iPSP 2 will be installed when the PSP turns back on.