USASat

I need to modify the cart to always charge sales tax when the client select the carrier that I created called "STORE PICKUP", I had this code before on a older version, but on the new 1.6.1.17 the cart.php change completely, and I cannot see where I can implement this option. // If pickup at store, set shipping rate to Florida tax if($selected_shipping_id == 182) $product_tax_rate = 6.5; else $product_tax_rate = (float)Tax::getProductTaxRate((int)$product['id_product'], (int)$address_id, $virtual_context); Please help. Andre