Try these sites l found while l was looking around.
http://www.carleton.ca/~rburk/chem1000/on_line_tuts/redox/redox11.jpg
http://www.chem.uidaho.edu/~honors/redox.html
http://library.tedankara.k12.tr/chemistry/vol1/redox/trans85.htm
Hope they help :)
NB: I am not sure what the ON...