3 columns below image not showing on front page

I installed the business theme and wanted the three columns to show up.

I have a fixed front page and want the three columns at the bottom.

I read the several threads on here about going into Appearance>Theme Options>Select a category for your latest news

I of course have a category selected, added some posts to that category but nothing is showing.

I also tried to add the final, third column but it didn't work either. This is an essential part of the theme and it's not good for you nor us users that it seems to be so hard to get it to display right. Creates unnecessary frustration and also numerous support questions for yourself.

Thank you for your help!