Product Option Images not displaying

My live site is version 1.35 SP2. On that site my product images update based on the options the user chooses. For example see below:


I’m working on upgrading to version 2.07 and have a test site located here. I have a product loaded and I have options set with an image. However, when I select the options the product images does not change. For example see below:


(Please note that I only have an image options setup for the choices: boy, black hair, blue eyes, fair skin; I plan to add the rest of the options once I get this working)

Is there a setting in CS cart that I have to enable in order for the product option images to change or should it just happen when a user selects the right combination?