Instructions
Download PSPWXP (see Resources). Open the folder into your computer. A folder "PSPWXP" will remain.
Connect your PSP via its USB cable to the computer. The PSP memory card folder will open.
Copy "PSPWXP" folder to your PSP memory card. Drag your "PSPWXP" folder into your memory card folder to copy it.
Open your "PSP Browser" program in your PSP. Navigate to the "PSP Browser" icon and click "X" to open it.
Delete your PSP browser cache. Click on "Settings" icon in the PSP Browser, select "Cache Settings" then click "X". Select "Delete Cache" then press "X" on "Yes" to confirm it. Navigate back to "Cache Settings" click on "Cache Size" then select "Do Not Use" click "X" to confirm.
Disconnect your PSP from the USB cable. Turn off your PSP. Turn on your PSP.
Open your "PSP Browser." Type in the address bar "file:/pspwxp/inder.htm" and press "Enter." This will turn on PSPWXP.