Thanks Jason. OK my mistake
I should have used sessionTest.php. (I was leaving out th eContactForm part of the path.
So the sessionTest loads and I clicked the first link. Next I click the second link and I get the Session Test = NULL .
So I guess "your server has a problem with session management."
I'm going to call the host (fatcow) tech support and hope they can correct this. I'm somewhat skeptical on the tech support people offering advice on configuring php to work with forms created by others but I'll give it a go.