SecondSun:
It looks to be one of these: http://uk.farnell.com/kingbright/ta23-11gwa/display-2-3-8x8-green-com-anode/dp/2290404
If that is what you have, then it is a row cathode common anode.
You can still use the tutorial I linked above in reply #2.
Physically you rotate the display 90 degrees
.
If you use the tutorial I linked above in reply #2,
what is used in the tutorial:
what you have rotated:
pin 9 of your 8x8 would go to where pin 13 of the other type of display would be connected to on the Arduino
pin 14 of your 8x8 would go to where pin 3 of the other type of display would be connected to on the Arduino
and so forth
I hope that makes sense.