Where can I obtain the software called “Instructor”? The instructions on JK Brickworks state (boldface mine):


  Publishing was done using Instructor version 1.6


However, if I search the Internet, the only pertinent results are the aforementioned instructions and the creator of that site does not provide any means to contact him to ask.

Where can I learn more about this software or obtain it? Is it known under another name?
It seems Instructor is actually being developed by JK Brickworks themselves, according to this Google+ post. Your best option would be asking them directly, as there is no download link on their website.