Hello,
To rename tabs refer to Woocommerce documentation:
http://docs.woothemes.com/document/editing-product-data-tabs/ (add code to functions.php file).
As I told you in the previous post:
The reason is your side gallery on single product pages.
Try to use this code in custom.css file:.thumbnails { margin-top: -80px !important; }
Or revert back standard thumbnails under main image instead of vertical gallery.
Regards,
Eva Kemp.