No controls when single product image

Thanks for a great plugin – it is very useful.

I don’t know if this is deliberate, but when there is only one product image, there are no controls on that image when it is enlarged.

When there is a product gallery an X appears in the top right corner, making it easy for users to return to the product page. This does not happen when there is only one image, with using Back being the only way.

Is this something which could easily be resolved?

The page I need help with: [log in to see the link]