Copyright statement from the source website:
Copyright Notice Unless otherwise noted, the entire contents of this Web site are
Copyright © 1994 - 2006
Douglas S. Ritter & Equipped To Survive Foundation, Inc.
All Rights Reserved
The text, images and information included on this Web site are intended for the personal noncommercial use of those who visit this Web site. Reproduction in whole or in part, by any means, for commercial purposes, including but not limited to the promotion of survival or outdoor sports equipment, supplies, schools and suppliers, is strictly prohibited except by the express written permission of the copyright holder.
Any use of this information for commercial purposes is strictly prohibited. Mr. Ritter is available for consulting for commercial purposes regarding any of the information included on this Web site. Contact Mr. Ritter for more information.
Statement from Ebay website:
Is the Course an illegal copy?
No. All our courses are sourced from the Public Domain and we have full permission to reproduce and distribute them.
It is possible that Mr Ebay has an agreement with Mr Ritter....... 
ps - sorry, don't know why text isn't wrapping properly.