WordPress.org

1. IMPORTANT! If you are upgrading from a previous version first deactivate the plugin, then delete the plugin folder from your server.
2. Upload the plugin folder to your /wp-content/plugins/ folder.
3. Go to the Plugins page and activate the plugin.
4. Go to Appearance -> Widgets and Drag&Drop Loptix to Your Sidebar
5. Use the Options/Settings page to adjust the behaviour of the plugin.

Loptix site has full instructions.