Proper Currency Converter

Store URL: https://www.goodnightsnoring.com
WordPress version: 3.7
WP e-Commerce version: 3.8.13.1
Gold Cart version: none
Theme: Custom

I’d like a proper currency converter that changes the price with in the wp e-commerce according to the visitors specification.

I’ve tried all the different plugins, which either just show it (current) or have a pop up bubble. None change the cart and stay there.

Can any one help.

Thanks
Wayne

https://www.ads-software.com/plugins/wp-e-commerce/