The Xyron 510 and the Create a sticker 500 are two different products and the refills are NOT interchangeable. You need to purchase cartridges for either the Xyron 510 (old name of the product) or the 5" Creative Staion (newer name).
There are many more types of cartridges available for the 510/creative Station 5. Here is the URL showing the compatible products: http://www.xyron.com/enUS/Categories/Creative_Station/5__Creative_Station.html
Please let us know if we can help you further.
Xyron Tech Support
Xyron Design Team Member