This article explains how to obtain MSI files for SuperNova, including full installation documentation.
You can download MSI installers for the latest version of SuperNova and also for older / legacy versions. Whichever version of the MSI files you download will contain full deployment documentation.
SuperNova MSI Download (includes documentation) – Latest Version
SuperNova v20 and later require you to deploy EasyReader to access all features, the EasyReader MSI files can be downloaded from here