I created a Custom Sidebar named MarketPress and added the Shopping Cart and Product Categories widgets. Then on the Store page (auto-generated by MarketPress) I set the default sidebar to MarketPress in the sidebar metabox.
The MarketPress sidebar shows on /store page does not show on any of it's sub-pages like /products, /shopping-cart, order-status, etc.
I'm not sure what I'm doing wrong here...
Here is a link to the store of the site I'm developing: