I just bought a set of Penny's worn overlays and have been trying to follow the instructions included with them, but for some reason it's just not working right for me

Is there a more in depth tut out there that anyone knows of on how to use these types of overlays? (Maybe even one with pictures of what to do, since I seem to need a visual to understand things - LOL). I use PSE 9.
TIA for any help!