WP ecommerce, lost right sidebar on single product page

Hi,

I have just brought a client site bang up to date with all the various upgrades and it seems to have gone quite well apart from the fact that I have lost the right side bar on the single product pages

I am using WPecommerce 3.8.5 wp 3.2 and Atahualpa V 3.6.7 along with the latest WP ecommerce Gold Cart upgrade (allows the gird view).

Here is an example of what I mean:

http://www.shinnerz.com/shop/patterned/patterned-medium the side bar is there, now click on the more details link for any product on that page and you will see the sidebar dissappears.

Any input from anyone would be gratefully received.

Many thanks

Dave