This information is available in your WebStore order history.

After you log in to the WebStore click on Order History. Click on this Order number.

For Unit Use purchases the download buttons and authorization codes are on this page. The code is located in the yellow section below the download links.

For Personal Use purchases, the download buttons and authorization codes are on this page. The code is under the words Installation key/Code.

Installation instructions are available for this offer via the "Installation Instructions" link.