The radio attributes are not showing correctly in website - I'm unable to make a selection and on selecting Add to Cart it adds both prices together in the total.

In the Attribute Controller - the Preview Attributes shows the Radio Buttons as selectable. If I change the Default Attribute it makes no difference to the site, they still remain unselectable (both selected).

I'm using ZenCart v1.3.9b and using a customised zen cart with and addon for postage.

In Admin the Attributes are all turned on.

http://ozmotorcyclemakeovers.com.au/...products_id=88

I'm obviously missing something, but cannot seem to find any resolution within the search forum, and hoping someone can shed some light on this problem.

Thanks