I just received my Potpourri cartridge! It does come with two overlays and one cartridge. I can't wait to play with it!! If you really want it, you do not have to pay more than $100 like many places want to sell it for. I got mine from ebay and paid under $50 including 2 DVDs full of projects from ProvoCraft and shipping (I'll let you know if they are worth it after I view/review).
You can find the handbook and more information at cricut.com information/library