Create a page Category

Hi,

I have a couponwebsite. To manage the coupons I have made a category structure which is: Category (for example Baby), and within that category there can be many other categories being the stores. I made a category for each store within the main category Baby.
When adding a new coupon I select both categories.
Now I want to make a new menu-item called Category. This needs to show all main categories (for example Baby, House, Garden) with picture. When you click on the category or picture you need te see all coupons within the categoy Baby.
I can’t seem to get this working. I created a page called Category. I used the following code: [TAXONOMY name=’category’ count=true icon=true] . The result is that the categories are shown of POSTS and not from COUPONS. Does anyone know how to get this right?

Astrid