this is the most up to date version of S5 that I found
S5 Reloaded • References

s5 presentations are now generated in pose
slide show - Google Search
Slide - slideshows, slide shows, photo sharing, image hosting, widgets, MySpace codes, web publishing, music - Slide
Slide.Show - Home
Slideshow: Create an online slideshow
Vertigo: Slide.Show
Slideshow - Wikipedia, the free encyclopedia
Photo slideshow software - Wikipedia, the free encyclopedia
s5 full screen - Google Search
S5: A Simple Standards-Based Slide Show System
A Basic Primer in Using S5
S5 1.1 Reference
Minimal S5 Structure
S5 File Map
S5 fullscreen on OS X?
Easy Slide Shows With reST & S5
s5 autoplay - Google Search
S5 Reloaded • References
S5 Project
S5 (file format) - Wikipedia, the free encyclopedia