Can't find slide show

i’m totally new to this. i have the Uber template which has a slideshow that uses the same image as a background. so far i have added two images to my slideshow and the affect is working well. i have only one page, and the slideshow is on that page, when i select edit, i can only see one image from the slideshow, i have poked around, but i can’t find the other. i need to edit the background image and add more images to the slideshow, but i can’t figure this out.
help!