Woocommerce product page has invisible side-bar

Hi Eveyone,

Im having a little bit of trouble setting up a shop on my wordpress website.

I am setting up a woocommerce shop on the Seabird theme and wordpress 3.8.1

Everything seems to be working well, except when my products are displayed on the the product page there is a blank space where a side bar would be.

What is the best way to get the page top be ‘Full-width’

here is my product page: https://www.moviedna.net/product/hi-res-digital-download/

Any advice is greatly appreciated, ive been stuck on this for hours ??