1.  Login
2.  Click on the Modules section in the left navigational menu.
3.  This will then display the 5 module categories available for browsing.
4.  Click on a specific module title to see more specific details about the module.
5.  If there is more than 1 purchase option to choose from, select the your choice. Then click on the "Add to Cart" button.
6.   You will now be directed to your Shopping Cart. When you are ready to order, click on the "Checkout" button in the bottom right corner.
7.  You must now re-login with your CAI username and password for security reasons.
8.  Complete the shipping and payment information.
9.  You will either be directed to a secure credit card payment page, or given mail-in payment order shipping information, depending upon your choice of payment methods.