Currently undergoing some site-wide issues that are effecting the checkout process when trying to checkout with a free item.

Our webdev nerds (affectionately dubbed) have been alerted, and we should have a fix within the next 24 hours.

If you've had a "card number invalid" or some such error in the past couple days when trying to checkout, please wait 24 hours from the time of this post, clear your cache, and try checking out again.

If it still doesn't work, please drop us a line on the contact page and let us know what Operating System and Browser you're using.

-h