NOTE: I stopped using Ion3 when the author changed the license to be very restrictive and generally selfish. I changed to Xfce because it is pretty sweet, and much nicer to use.
~/.profileExample:
xscreensaver -nosplash & display -window root ~/photos/2005_fall/kelley/pc087372.jpg
~/.xinitrcExample:
xscreensaver -nosplash & display -window root ~/photos/2005_fall/kelley/pc087372.jpg #Now start the window manager /usr/bin/ion3