The 'Order Checklist' keeps track of the items you have in your cart and displays a running total of the cost. If you have not added any items to your cart, the 'Order Checklist' will say your cart is empty.
If you have added items to your cart you can do the following.
To view information about any of the items in your cart, just click its name.
Click 'Cart' to display the full shopping cart or 'Checkout' to begin the checkout process.