Marketpress shopping cart page text

In the “Messages” tab of Marketpress’s settings, there is a place for text that is supposed to appear on the Shopping Cart page. But that text doesn’t appear on the shopping cart page when the shopping cart is empty; instead it just says “There are no items in your cart.”

–Why doesn’t the shopping cart text show in the shopping cart when it’s empty, and when will Marketpress be fixed so that it does?

–How can I edit/format that “There are no items in your cart.” text?