trying to edit the home page for a site but having difficulty

Support access is on for: http://www.parisprivatephototours.com/

I'm working with Integrity 4 stack in X theme and I want to edit the main page. I thought it was a cornerstone page but when I go to edit home page it apepars to be text page. I want to edit that placeholder data and put my own images there. Is that controlled by Slider Revolution or cornerstone?