Third party plugins are not guaranteed to work with Classipress and may require some modification to make them fully compatible. Here are few that has been tested with http://www.appthemes.com/resources/.
Please help our moderating team work more efficiently by not sending us support questions via PM. You can read more about how AppThemes support works here. However, you can send a PM to follow up and remind me if I missed your support request/thread.
