WP site that needs fixes

I have a WP site that is mostly finished, however, my previous developer and I are having trouble finishing it. As it is a photography website primarily I need the images to work in sliders. The theme developer says it can be done, however we have not been able to work it out. I want 3 folios that are sliders and work with video content. please see the site: [login to view URL] and have a look at the last folio " at play" which has multiple images. I do not want them to look like this when multiple images are uploaded. The developer has responded to my query : "The theme uses FlexSlider to make the sliders elsewhere in the theme, so it would be straight forward to use it for a portfolio slider too." I hope this is accurate as I have video content also. So please check that my request is possible before bidding. The theme used is : Impromptu by swish themes. ([login to view URL]) I also need some small changes to the Text size in some spots. thanks