Originally the WYSIWYG designer was scheduled for 17.1, but has been moved up into 17.0 and is currently being developed. Because of this, this tutorial is out of date and does not yet cover the designer. The tutorial however is still useful and we recommend following through it, with the mindfulness that a full WYSIWYG designer will replace the existing tree based editor.
This is a progressive tutorial and proceeds in steps. Unless you are already familiar with IntraWeb and are seeking information on a specific topic, it is recommended that you start with Hello World.