Displaying gallery in two columns

Hello. First of all, please excuse my English.

I need advice from you. I created a photo gallery using widgetkit third party, but I have a problem with the display in two columns. When I set the widgetkit two columns show me only half of the entire page (see http://farmapolna.digito.cz/galerie/farma).

What can I do to gallery show in two columns across the width of the web?

Please specific solutions.
Thank you in advance.

Michal.

Hi,
sorry but we do not support widgetkit (yootheme) products.
but it's something with grid.