I did a tester page, and added this, which resulted in a partial solution. It is now listing the items in the catalog, but not the colors or the click throughs, so I'm not there yet.
I added:
<?php
require_once('PowerStore/webassist/themes/theme_open.php');
$WAIncludeContent = new WA_Include(__FILE__);
?>
<?php
$WACatalogResults = new WA_Include('PowerStore/webassist/plugins/catalog/themed/results.php');
require($WACatalogResults->BaseName);
$WACatalogResults->Initialize(true);
?>