Slider Issues

I recently switched to the Catch Everest theme and like the layout.  However, I am baffled by how the slider works.  Where do the images come from?  I basically only want 3 to 5 images to slide across my static home page to visually illustrate the services I provide.  However, I do not see where I can replace the default images with my own.  I also do not want the post images to appear below the slider image, but do not see where I can turn off this feature.  My site is currently located at: http://questusstrategies.com/wordpress/ Any help anyone can offer is appreciated. rsolosky