I think there is a readme included with the file you downloaded, but, you just didn't care to read it, all you need to do is put your nitepr.exe and the nitepred file in your desktop or in a folder on your computer somewhere, not on your psp memory stick on your computer, than open up the nitepred program than do what it asks you to do, its really easy to change the contols for your nitepr, and if you don't understand or find my reply too vague, simply read the README.