Click on the "notify me when available" option and enter your contact info. If you're not ordering large quantities, you'll likely hear from them soon with a request to call within a certain time period to place your order. They will put lots of breeds on backorder like that but it doesn't mean they don't have any available, only that they don't have enough available to open the floodgates to online ordering.
x2. I got an order from them a couple weeks ago, every breed I ordered was listed as unavailable on their website. So I clicked the notify me button and put my info in. I had an email from them that same day saying they had the breeds I wanted and I could call and place my order anytime