Hi joaoferraz
1. to display the SKU, you need to edit componentscom_virtuemartthemesja-mesolitetemplatesproduct_detailsflypage.tpl.php files.
Add [PHP]<?php echo $ product_sku;?>[/PHP] where you want to display
2. to display the Manufacturer, you should follow these steps:
– Go to http://your_site/administrator/index.php?pshop_mode=admin&page=admin.show_cfg&option=com_virtuemart
– At Site tab -> Layout -> Select the theme for your Shop, select theme you want using and click “Configuration”
– Next, in Show Manufacturer Link? tick “Yes”
– Save and finish
Wish you success 🙂