I got confused too. I think the main update installs only the fixes and other features common to the user interface of the platinum engine.
You do not necessarily need to install everything else that's available if you don't want to. I actually did install everything but that was before I figured this out. Maybe Cakewalk should make this more clear.
Also, I spent time looking for the Anderton Effects before I learned from another thread in this forum they were to be found in the browser (and also as 'cowboydan' says above).