Amy,
You're going to have to use a Pet Stain & Odor remover (like a shampoo) and it will have to soak down into the pad to remove the stain and the odor. If you don't do this, she will simply return to the same spot. That's what her nose is telling her to do.
I have read (I don't really know) that steam cleaning only sets the stains unlike the other shampooers. Much luck. Let me know how it works out.