Can't get rid off comment box on productpages wp-e-commerce

I have a problem regarding comment box on all single product pages with wp-e-commerce. I have disabled comments in settings and no comment box is present on "normal" pages, but on all single productpages. The other thing is that I can't turn comments off individually either because the is no checkbox for on the wp-e-commerce generated pages. I don't know what to do.

I use:
Wordpress 3.4.1
Atahualpa 3.7.7
wp-e-commerce 3.8.8.5

and this is a link to a product page http://www.aferdsjo.se/?wpsc-product=KTA-XE667K2-4G

Please let me know if you have any suggestions on how to solve this.