Got this fixed. In case anyone is interested. In the edit screen of the course, I simply changed the number on the custom field “rating_count” from 1 to 2.
Oops- ignore the earlier post of the code.
The code I am using is:
<a href="http://eepurl.com/Ct_vD"><img src="http://propheticdreamers.com/wp-content/uploads/2013/09/Register-Button-1.png" alt="Register Button 1" width="200" height="72" class="alignleft size-full wp-image-6247" /></a>
I have also tried:
<a href="http://propheticdreamers.us7.list-manage.com/subscribe?u=0ee1a8e8ba6c33fe75be506ab&id=155b434f93"><img src="http://propheticdreamers.com/wp-content/uploads/2013/09/Register-Button-1.png" alt="Register Button 1" width="200" height="72" class="alignleft size-full wp-image-6247" /></a>
The code I included is the one on the top of the page as connected to the first button.