Hello,
1. At first you need set prices for your variations in product editor. Then go to Appearance > Widgets and add “Woocommerce Layered Nav” widget to “Shop Sidebar” area http://storage4.static.itmages.com/i/16/1228/h_1482945688_8137195_5f8f92e76e.jpeg .
2. On our demo languages and currency links are used just to show the theme is compatible with WPML and Woocommerce Multilingual plugins, that work together. So your site can be presented in different languages.
3. As I see your site is shown properly.
Please clarify what exactly is incorrect.
Thank you.
Regards,
Eva Kemp.