disble comments

IM using marketpress, with frame market/gridmarket theme. some pages like this one..
http://www.ybrmarket.com.au/blog/store/products/my-product/
I dont know how to disable the comments.. As the page is somewhat generated by marketpress.
I went through a few gridmarket files like mp_product.php and changed comments template to false but that didnt have an effect. Any Ideas?