Installation Guide
PBMax has put together this useful installation guide - HERE.
Unfortunately, this guide is out of date. The instructions it contains for setting up the XMLTV grabber are still accurate. To install the importer, download the installer version, and run the install.

Snapstream Support Forum
The Snapstream support forums can be found - HERE.

As well,  the following sticky thread within the Snapstream forum has been dedicated to the discussion of this tool from day one - HERE.