remove sidebar from products

Hi there,

I hope you can help me with this one. All i want to do is to remove the sidebar completely from my products?

http://www.vintagetimewatches.com/product/vintage-longines-mens-classic-quartz-gold-plated-watch-391/

As it breaks my html for my adds.

Please please how can i do this? i Just changed my theme to market theme, and these seeems to be the only thing that is making me want to go back to my old theme!!

please help!

thanks