Add New Widgets

Hi, I am struggling with this.
ata 3.7.3.. wp 3.3.1...http://www.floshmeadowsselfbuild.com (1290px wide)

How do I add 3 new equal width text widgets across the page immediately below the menu bar and above the sidebars and center column.
Each widget would contain a title and (about) 6 lines of text and end with a "more" tag.
The widgets would be styled as existing and each widget should be visibly (slightly) separated from each other.

I have to date failed miserably in following the "add widgets" instructions.

I would welcome any help that can be given.