The redITEM Control Panel is a start page with quick links to the main elements of the redITEM Component.
Here's an overview of what you can do in each area:
Explore will allow you to view all of your existing items and access them for editing.
Types is where you will manage your item types, and create new types for grouping content with specific templates / layouts.
Categories is where you will manage categories for your content items.
This is where you will manage your content items. You'll probably spend a bulk of your time in this view, once you have everything all configured (templates, etc)
Each individual element of content for each item type is created as a field. Fields can be grouped into Field Groups.
Templates are the structure/layout of any view used in redITEM. Templates are created for categories, content item types, module views, teaser views and more.
Configuration is where social sharing settings, permissions and other settings within redITEM can be changed.