mod_virtuemart_featureprod отображение товаров - [VM1] Дизайн, оформление

Arkadiy, я в Joomla и PHP профан, напишите пожалуйста, что требуется вставить в шаблон productsnapshot.tpl. Название поля product_full_image, но
<?php echo $product_full_image ?> ничего не возвращает.

function product_snapshot( $product_sku, $show_price=true, $show_addtocart=true, $show_product_name = true ) {

      global $sess, $mm_action_url;

      $db = new ps_DB;

      require_once(CLASSPATH.'ps_product_category.php');
      $ps_product_category = new ps_product_category;

      $q = "SELECT product_id, product_name, product_parent_id, product_thumb_image FROM #__{vm}_product WHERE product_sku='$product_sku'";
      $db->query( $q );

      if ($db->next_record()) {
         $product_id = $db->f("product_id" );
         $tpl = new $GLOBALS['VM_THEMECLASS']();
         
         $cid = $ps_product_category->get_cid( $product_id );

         $tpl->set( 'product_id', $product_id);
         $tpl->set( 'product_name', $db->f("product_name") );
         $tpl->set( 'show_product_name', $show_product_name );
         
         if ($db->f("product_parent_id")) {
            $url = "?page=shop.product_details&category_id=$cid&flypage=".$this->get_flypage($db->f("product_parent_id"));
            $url .= "&product_id=" . $db->f("product_parent_id");
         } else {
            $url = "?page=shop.product_details&category_id=$cid&flypage=".$this->get_flypage($db->f("product_id"));
            $url .= "&product_id=" . $db->f("product_id");
         }
         $product_link = $sess->url($mm_action_url. "index.php" . $url);
         $tpl->set( 'product_link', $product_link );
         $tpl->set( 'product_thumb_image', $db->f("product_thumb_image"), "alt=\"".$db->f("product_name")."\"");

         if (_SHOW_PRICES == '1' && $show_price) {
            // Show price, but without "including X% tax"
            $price = $this->show_price( $db->f("product_id"), true );
            $tpl->set( 'price', $price );
         }
         if (USE_AS_CATALOGUE != 1 && $show_addtocart
               && isset( $GLOBALS['product_info'][$product_id]['price']['product_price_id'] ) // Product must have a price to add it to cart
               && !$this->product_has_attributes($product_id, true)  // Parent Products and Products with attributes can't be added to cart this way
               ) {
            $url = "?page=shop.cart&func=cartAdd&product_id=" .  $db->f("product_id");
            $addtocart_link = $sess->url($mm_action_url. "index.php" . $url);
            $tpl->set( 'addtocart_link', $addtocart_link );
         }
         return $tpl->fetch( 'common/productsnapshot.tpl.php');
      }
      
      return '';
      
   }