Thanks for the opportunity of providing a free version of your very elegant Storefront theme.
I've just downloaded and installed it today, with WP ecommerce version 188.8.131.52. When adding products to categories, the categories count remain at 0, in other words, even after having added 3 products to a category, the sum total on the last column in the categories page stays at 0.
The net effect is that no products will display on a categories page.
I uninstalled and reinstalled the WP ecommerce (GetShopped) cart. Could it be that the theme isnt compatible with this version or might the bug be on the WP ecommerce side in totality?