If you work with Thematic for the first time, the most asked question will be, where are all these widget areas located?
You could go to the Widgets section in WP Admin and assign at least one widget to the 13 widget areas.
Today I'll show you how to setup your home / frontpage to use a 3 columns fixed layout and all other pages using a 2 colums, sidebar on the right fixed layout.
The major requirement for this and all other code snippets: You have to use a child theme!
How to display all widget areas for a test?