This article describes where to find information on placing an upgrade order.
When you click the Buy Now button, the shopping page lists the full versions of the software and the PDF User's Guides. To purchase an upgrade from this page, click the large green button that says Click here to Upgrade Existing Products.
From the shopping page, click the large green Click here to Upgrade Existing Products button to upgrade existing products.
You will then be required to log in to your customer account, click the Upgrade Software button, select the serial numbers to upgrade and add them to your cart.
Updated October 16, 2015