Sidebars and Widgets
Wacko Plus comes with 4 sidebar, Footer 1, Footer 2, Footer 3 and Footer 4.
These sidebar are used to display widgets in footer section. If you wish to display just 3 column in footer then you can just insert widgets into 3 sidebar only.
Wacko Plus has About us widget built in with themes. Further more you can use numbers of default WordPress built in widgets.