Pozy has Mr. Jack for $21.50 plus shipping at its temporary site (www.tibad.com). Limit two copies (shipping is $6.95 for one, $7.95 for two), and payment through Paypal (you can use a credit card if you don't have a Paypal account).
Boulder Games currently has it for $23.80 plus shipping. Boards and Bits' price is $25.59 but it's on backorder. This price is comparable to what Tanga had it for back in December ($27.98 shipped).