Go to the product page, click the button
which will open a pop-up window where you can then enter your original order number (it was emailed to you) and you email address and click the Claim License button.
Your license will transfer to the M2N system where you can then purchase a maintenance update if you need to and then download the product.

which will open a pop-up window where you can then enter your original order number (it was emailed to you) and you email address and click the Claim License button.
Your license will transfer to the M2N system where you can then purchase a maintenance update if you need to and then download the product.