From this page - http://www.tersus.com/#Id=121
The "Getting the Tutorial" link has links to 2 HTML versions of the tutorial.
The 2nd link ( http://infocenter.tersus.com/topic/tersus.help/html/Tutorial/Stage%201/Stage%201.html ) is broken. The first link has broken images on step 2 of the tutorial.
For best results, use the Firefox browser..