WP Ecommerce – manage image error

Hi Guys – im having trouble with WP ecommerce thumbnail images

if you look at http://happyhealthyandinspired.com.au/products-page/

you will see what i mean – if i view the product in single product view it works no worries, but in product view the image does not work.

if i turn thumbnails off in the store settings it goes away alltogether (no image). in the source it appears that the <a ref is malformed

additional (and perhaps related) on the bottom of the product page (the one where you create single products) there is a button MANAGE IMAGE GALLERY but when i click on it – it goes nowhere! – i popped it into a new tab and even then it didnt seem to work.

any ideas? ive spent a whole day trying to work around this issue.

Tony