Okay David says late is better than never LOL so here is my slider example without using a slider as it was built in Storyline one with buttons and the hover feature. In an article I did on Atomic Vegas I wanted the reader to get an idea of what it it was like in the first few years of Atomic testing where casinos would have viewing parties on the rooftops downtown to watch the blasts go off. I used a vintage shot of Vegas as the foreground and images from several atmospheric test in sequence as you scroll over the buttons.
http://www.enigma2eleven.com/assets/multimedia/BlommingDesert/story.html here is the rest of the article LOL the bottom of the page has another interactive Atomic Clock
http://www.moniquee2e.com/atomic-vegas-an-era-of-influence/