1) Download the archive with an addon;
2) Extract the archive to some folder;
3) Copy the “addons” folder from the archive to your site root; or you can just copy the “cs_lightbox” folder from “addons” to root/addons/;
4) Copy the “customer” folder from “skins” to root/skins/current_skin_name/. All the necessary files will be inserted into the template automatically as well;
5) Go to the administrator section Administrations->Addons, locate the “CS.Lightbox” addon, and hit the “Install” button;
6) The module is successfully installed.
7) As a result, PrettyPhoto plugin will be used for image zooming on the product page.
8) If you want to use another plugin you should go to the administrator section Administrations->Addons, locate the “CS.Lightbox” module, hit the “edit” button, and choose plugin from dropdown list.