To access this item, click on this link. This will take you where you can "purchase" the item (yes, it's free, but you have to go through this process to access it).
Once you click to "add it to your cart" you'll be taken to a page where you can either login (if you already have an account) or create a new account. You do have to have an account to access the item.
Logging in will allow you to "purchase" and acquire the item for free. Creating a new account will allow you to choose "Free Items" from the upper menu and then select and "purchase" this free item.