First edition paperbacks may still be on sale, but none of the proceeds will make it to the author due to publisher liquidation. I do have some physical copies left that you can buy directly from me, but you'll have to pay for shipping from my home in Australia (send me an email for more info). Alternatively, I've put the ebook back on sale at Payhip.
DRM-free ebook (PDF/ePub) via Payhip
...I mean, only if you want to.
(While you wait, you can play with the Classic Mac-themed website for my other book.)