The far easier way to do this is NOT to use slidelets but to use rollover captions or rollover image objects. Slidelets are a pain in the proverbial it too many ways.
Just put a click box or button on the slide to pause it while allowing the user to move their mouse over the rollover hotspots on the slide to see information pop up as needed. When the user is satisfied with the information they can just click to move forward again.
Much simpler to setup and maintain.