Indexhibit Support

Hello, i am new user of Indexhibit. I prepared my site with the main theme (default).
I want test a new theme (colummner by exemple).

I followed the tutorial to upload files (ndzxsite), i change the theme in the admin menu. And here: problem.

The theme is activ but there are nothing. Not sections, not home. A white wall. (lucaskozak.com)

When the columner theme is run: hpics.li/…

What can i do ? Change the index.php of default theme ? Adjust the theme ? Change links ? Or all customize ?

Sorry if my questions are idiots.
Thanks.

Is this theme for version 2?

There are not informations about the theme and it is old. I think that it's the problem.

Thank you, i will customize the default theme.