You'd need to either add our JFBCLike and JFBCComments modules to a position that will display on your Mosets Tree listings pages or use our {JFBCLike} and {JFBCComments} tags in the Mosets Tree template. I don't remember Mosets Tree's template files specifically, and they may have changed, but I'm pretty sure you want to edit a file with a name like sub_listingDetails.tpl . Once in there, find the position you want the buttons/comment box to show and add the tags there.
Hope that helps get you started, but if you need anything else, just let us know.
Thanks,
Alex