Thanks for raising this question for your slideshow images. Are you looking for clipart or are you looking for image specifications?
While Jive does not have an image repository you can pull from. If you are interested in image libraries I would suggest performing a search (Google, Bing, Yahoo, etc) for open source or copy right free images as these should be available to use. Additionally, I woudl suggest reaching out to you IT team as they might have additional resources you could pull from.