Help- Fjords Theme 3rd Column Dropped

Hi. I’ve had a blog on blogger but kindly a virtual friend has uploaded my blog onto Word Press directly. He installed the Fjords 1.0 theme, which has three columns. When he first installed it, the 3rd column was in the right place (far right). However, after I uploaded my archives from Blogger (old entries only, no other changes) the third column bar dropped below the second column bar, so that now the second column has the content for both columns, while the third column is free.

I know HTML but am totally new to CSS. Any advice is welcome.