To download your purchases, go to the right side of any page and the "Download Area" link will be there for you to instantly download your purchases.  Click on the "Download Area" link (shown circled in the picture below) and it will take you to the page where your purchases are located.

The picture below shows a sample page of purchased products after you have clicked the "Download Area" link shown above.  The picture below shows the links (highlighted in yellow) that you would need to click in order to start the download of your purchased patterns.