Sydney Slider not showing

Hi, I am having a tough time getting the slider to showcase on the Frontpage. The site is SaniCleanJanitorial.com, and I’m currently building it on GoDaddy. I’ve uploaded the necessary images for the slideshow, and I don’t have any “photo gallery plug in” or anything like that. Your advice will be greatly appreciated. Additionally, I researched 3 related posts, but no luck. Thanks.