Thank you for your patience with me on this. I appreciate it. I wanted to come back to report that it is working now. As it turned out, my suspicions were right. The problem was with inconsistent setup and instructions.
I finally received a warning message which gave me the clue about what was going on. The problem was in main.php. It was referencing ../simplepie/simplepie.inc. Of course I didn't have such a folder. Once I created it and moved simplepie.inc to it, all worked. Hope this helps someone else.
Now, another curious and general question: Is there a way to display the articles on my site rather than taking the visitor to the articles source web site?
Here's the working link: http://www.voicesfrombeyond.com/feed1.shtml
Thank you.

