ZWoom showing default image on variation product

Hi,

I have installed ZWoom plugin and it works great, the only issue I am having is that when the product area is hovered over, the image displayed is the default image of the first product.

I have uploaded many variations that change colour when accessed via the colour dropdown (using size too) but this does not relate when using the ZWoom plugin, is there any way I can choose which product to display or get it to hover with correct image? Thanks in advance, the website I am referring to is: http://www.high-grade.co.uk/

Thanks,

Ricky

http://wordpress.org/extend/plugins/zwoom-woocommerce-product-image-zoom-extension-by-wisdmlabs/