Don't know if you got your answer yet, but yes, this is open source. From the license in the 2.1.7 release;
* This program is free software; you may redistribute it and/or modify it under
* the terms of the provided license as published by Digital Frontiers, UTO.
* This program is distributed in the hope that it is and will be useful, but
* WITHOUT ANY WARRANTIES; without even any implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE.
You can get it from the main page:http://www.helpcenterlive.com
or go right to the download page:http://www.helpcenterlive.com/downloads/