GrumpysLolita, They are both pretty much the same thing. And yes, you can use edible images on them. They will melt right into the cake but the image will not run or smear. I frost exclusively with Pastry Pride and I do almost anything with it.
Please feel free to look at my albums and you will see. It can be used for most everything
Call the KA manufacturer and ask them where the closest repair center is to you. Take it there, have it fixed and pick it up when it's ready. Faster and less expensive than shipping it out. That's what I did and I had mine back in less than a week. It was out of warranty and I had to pay $60 for the repairs but it was still better than shipping it out.
My specialty is not cake pops but I have made them before. I have found that if you let them sit for more than 3 days they start to leak oil. This has been my experience. Perhaps some one with more experience can elaborate a bit more on this topic.