Yes, you can add the Comment box to your listings. The best way to do so is to add the {JFBCComments} tag to the listing template itself. I don't know Mosets Tree extremely well, but I know they have a good template system that you can modify for each page. Once you know the listing template file (you may need to contact Mosets to find out what it is), you can simply add:
Add it where you'd want the box to display, and JFBConnect will add the comment box there automatically. For information about additional parameters, like box style, number of comments, etc, see the Tag configuration page:
www.sourcecoast.com/jfbconnect/docs/conf...ation-guide?start=13
Hope that helps, and good luck,
Alex