Hi Ted,
You can do following this task
1. Find the menu item id of the menu that you want the results show. It's unique number, you can see in the backend.
2. Go to modules > mod_ospropertysearch > tmpl > default.php
Find
<input type="hidden" name="Itemid" value="<?php echo JRequest::getVar('Itemid')?>">
and replace
<?php echo JRequest::getVar('Itemid')?>
by the itemid number.
Good luck
Dam