Nick,
I have the same setup as you to in this tutorial, but i cannot get the bot to move for more than .5 seconds per direction. I havent changed any code at all and double checked the wiring.
Also in the code, to a novice, it appears you are using pins 8 and 9 as pin A & B respectively, but in the diagram they are not hooked up.. Could you please explain that to me.
Thanks!