Disable Submit a Comment on products

Hi have disabled comments on WP but would also like to remove the ability to Sumbit a Comment from every product. I have already scrolled to enable comments for products and chosen disabled but they still show.

i need to remove submit a comment from all existing products please.

thanks

http://wordpress.org/plugins/wp-e-commerce/

[Moderator Note: No bumping. If it’s that urgent, consider hiring someone instead.]