I’m not sure what you’ve done wrong, maybe its the name of the pictureset. Did you choose a name with an empty space, for example “home page” or “main slider”? WordPress ignore the empty space, better is do use a name like “main-slider” or “home_page”, without empty space. If thats not the problem, then please send us ( info @ 7theme . net ) the login and the link for your website, then we can take a look at it.