To get the custom options working you need to first save some settings to a product or choose default options in the "Settings."

Read these articles for more information.

How do I add product options to a product

How do I set up default options for all products

If you are trying to view the options in a theme that isn't published read this article

Why aren't the custom option settings showing up when I preview a theme

If you have options already saved and it isn't working write us a support ticket and we'll fix it for you.