In http://orgmode.org/worg/org-tutorials/non-beamer-presentations.html#sec-3
the 'here' (emacs code available here under Code and usage for
org-export-as-s5) points to
http://gitweb.adaptive.cs.unm.edu/org-S5.git/blob_plain/HEAD:/org-export-as-s5.el
(where theres nothing about emacs/org mode)

Should probably point here https://github.com/eschulte/org-S5??