I bought and installed the market plugin. At the demo it

Hi,
I bought and installed the market plugin. At the demo it shows http://simplemarket.wp-ecommerce.org/store/products/
At time I can show only products, when I want to add to basket it's doing something, but I can's see any basekt, any categories etc.
How do I intergrate it that I have a complete market like this?
THanks a lot !
Greetings
Michael