there are a bug when you want add field and display in Category product for WP-Ecommerce.
When i select in rules -> Taxonomy
it's not possible to select wpc_product_category, i can only select category created bellow , but after when i save and edit after a category the field doesn't display
It would be great if we can in the next release :
select -> wpc_product_category (in bold) and display the field created for all categories