This is a step-by-step that might help you on your setup.
- Activate WooCommerce Variation Details on Page Product plugin and ta-da, that's it. It should work in most cases.
- Use a front-end development tool — like firebug — to track selectors on your DOM. Map them on WooCommerce > Settings > Variations according your needs.
- Alternatively, you can use the shortcode [mp_wc_vdopp_variations] to hook variation details.