zen cart 1.38a

I have added catagories and sub-cats and finally my first product as a tester.

How do i add a drop down box to the product. I have created a drop down box in option name manager but everytime i try to assign the drop down boxes to the item, it tells me there were no products found.

The drop down box relates to the flavours of the item. the web address is http://fitone-online.com

Are my categories not linked to my products? how would i find out?

help