Tip
You can mouse over the icons with a question mark in those wizards to know more about the features and preferences that are new for you. 
Example:
Example: Starting in Tiki12, some wizards were added to Tiki to help in the initial setup based on configuration templates like "Macros" (Profiles Wizard), as well as further site configuration (Admin Wizard), to help you while upgrading your tiki site to see what's new (Changes Wizard), and to help you as site admin to collect more information from your users if you need it (Users Wizard).
Example: