It's ok. Now, I can see your site... Is settled with 3 columns - a main column with 2 sidebars, one on the left, one on the right. The only thing which missing - you don't have anything in sidebars. For adding something there you need to go at Appearance -> Widgets... and add WIDGETS (even those who getting rid of them)...
But... if you need 3 columns of text... a magazine layout, with excerpts, categories, flowing in 3 columns (regardless of sidebars, which can exist or not) you need to:
1. Create a static page (Dashboard -> Pages -> Add New) - just give it a name, even "Home", and select from the Templates drop-down from Page Attributes right panel - Magazine
2. At Settings -> Reading set a static page as Frontpage and select the page created at first step.
3. At Suffusion Options -> Templates -> Magazine format your new Magazine homepage as you wish.
Also, for obtaining 3 columns layouts for categories/tags and so... at Suffusion Options -> Layouts -> Categories (Tags and so...) can choose a Tile layout which can be formatted to have 3 columns, below, at Suffusion Options -> Layouts -> Layout: Excerpt / List / Tile / Mosaic / Full.