Old user guide

I installed the installer version today for CSC 2.0.108716.5. I wanted to understand what RegistryProtection and SafeDelete do before I allow CSC to clean the registry. I clicked the Help menu, and it took me to this web page: http://www.comodo.com/home/support-maintenance/system-cleaner.php

When I clicked on the Support tab and downloaded the user guide, it was for an old version of CSC that doesn’t have these features. How do I get an updated user guide?