Downloaded free version of plugin. Followed Mr. Hoppe's installation instructions. The 2 sample posts did not appear on the page. Tried the short codes. Did not work.
Reread installation instructions. Read the lastest 10 "See what others are saying" messages. Tried some of the solutions discussed in the messages. Tried the short codes again. Visited Mr. Hoppe's web site. Still did not work.
Your mileage may vary, but my configuration was unsuccessful.
If I have time, I may try to deactivate all my other plugins, then reactivate one by one.