If your having problems with ripping, add a simple water mark over the top of the image, you can do it in photoshop, paint shop pro, and gimp (gimps free btw if you can get either of the two big packages, but there is surely ways to aquire it)
Open the image you want to water mark,
Make a new layor with text, I've used "copyright william" as an example
Make the text white, and ducplicate it so it covers the whole picture, like so:
Now after it looks something like that, turn down the opacity of the text to around 20% - 25%
You now have a pretty easy anti rip picture,
But this wont be much use in the actual game, but there are other ways to stop ripping on your game.
Hope that helped,