I believe you use the kit to cut out your design and create an embossing folder that you can run through your BigShot. I don't think you can emboss with the Cricut, but I could be wrong. In which case someone will be along soon with a better answer. (I have the Pazzles which does emboss up to 12x12 directly unto the paper)
My understanding of this item is that you cut the design you want to emboss out of the material with the cricut and put it the blank folder and then run it through your, cuttlebug or sizzix. That being said, I have heard that neither this nor the stamp material they have works very well.