You need to enlarge the image so that its the same size as the blank control panel templates in chapter 6 on the cd. You'll want to find a program that lets you change the size to a specific number of pixels. I use Photoshop, but I'm sure theres plenty of other options out there.
by the way, the correct size is:
4312 pixels x 2312 pixels
once its that size, printing it out in MS paint should work.