I decided to try another plugin while waiting for responses to the bugs found in all the other plugins that I have tried so far.
Here I activated the directory plugin. I have not added listing yet, but that should not matter I do not think... the bug is when visiting the sign up page, this error is displayed.
Fatal error: ob_start() [ref.outcontrol]: Cannot use output buffering in output buffering display handlers in /home/qkrme/public_html/wp-content/plugins/directory/core/core.php on line 851
I have not been able to use a single plugin here yet without spending time submitting support tickets.