Unpack contents to wp-content/plugins/ into a superslider-milkbox directory
Activate the plugin,
Configure global settings for plugin under > settings > SuperSlider-Milkbox
Create post/page ,Add WordPress images.
(optional) add milkbox shortcode to your post.
(optional) move SuperSlider-Milkbox plugin sub folder plugin-data to your wp-content folder,
under > settings > SuperSlider-Milkbox > option group, File Storage - Loading Options
select "Load css from plugin-data folder, see side note. (Recommended)". This will
prevent plugin uploads from over writing any css changes you may have made.