try changing it directly in the code.
On the products_Results.php page at line 161:
$query_WADAProducts = "SELECT *, (ProductStock - (SELECT Coalesce(Sum(DetailQuantity),0) FROM orderdetails INNER JOIN orders ON OrderID = DetailOrderID WHERE DetailProductID = ProductID AND OrderDate > ProductUpdateDate)) AS NumLeft, (SELECT MAX(ProductPrice) FROM products as prod2 INNER JOIN productoptions ON productoptions.ProductID = prod2.ProductID WHERE productoptions.GroupingID = products.ProductID AND prod2.ProductLive <> 0) AS TopPrice, (SELECT MIN(ProductPrice) FROM products as prod2 INNER JOIN productoptions ON productoptions.ProductID = prod2.ProductID WHERE productoptions.GroupingID = products.ProductID AND prod2.ProductLive <> 0) AS BottomPrice FROM products LEFT OUTER JOIN productcategories ON ProductCategoryID = CategoryID WHERE ProductLive <> 0 AND COALESCE((SELECT GroupingID FROM productoptions WHERE productoptions.ProductID = products.ProductID LIMIT 1), ProductID) = ProductID";
change that to:
$query_WADAProducts = "SELECT *, (ProductStock - (SELECT Coalesce(Sum(DetailQuantity),0) FROM orderdetails INNER JOIN orders ON OrderID = DetailOrderID WHERE DetailProductID = ProductID AND OrderDate > ProductUpdateDate)) AS NumLeft, (SELECT MAX(ProductPrice) FROM products as prod2 INNER JOIN productoptions ON productoptions.ProductID = prod2.ProductID WHERE productoptions.GroupingID = products.ProductID AND prod2.ProductLive <> 0) AS TopPrice, (SELECT MIN(ProductPrice) FROM products as prod2 INNER JOIN productoptions ON productoptions.ProductID = prod2.ProductID WHERE productoptions.GroupingID = products.ProductID AND prod2.ProductLive <> 0) AS BottomPrice FROM products LEFT OUTER JOIN productcategories ON ProductCategoryID = CategoryID WHERE ProductLive <> 0 AND COALESCE((SELECT GroupingID FROM productoptions WHERE productoptions.ProductID = products.ProductID LIMIT 1), ProductID) = ProductID ORDER BY products.ProductName DESC";