404. That’s an error.

The requested URL /wpg2?g2_controller=cart.AddToCart&g2_itemId=6498&g2_return=%2Fwpg2%3Fg2_0%3Dwpg2%26g2_itemId%3D6498%26g2_wpg2_returnurl%3Dhttp%253A%252F%252Fblog.arrington.org%26g2_wpg2_returnname%3DArrington.org&g2_returnName=photo was not found on this server. That’s all we know.