[Theme: Photocrati] How can a visitor enter comments?

Hey guys, i thought this would be simple but I’ve had a hard time. Im using the photocrati theme (WP 3.1.3) and my site is https://www.replayimage.com.

My “Photos” page has the “Allow Comments” box checked and I thought it would be enough for a visitor to my site to be able to add comments. But I dont see how they can do it. I would imagine there be a dedicated space allocated for this.

Do I need a widget for this to work?

any help is appreciated.