Stupid Idiot need help....

I feel like a nOoB...... 
......but anyways, I can't seem to figure out how the linkages between the wheels on a steam powered train works...
...the only thing that I'm working off of is a top view (which is like shit...
) and a half way decent right side view........and about 50 picutres of the right side of the train taken by none other than my instructor's brother....(thanks alot you moron...
)
I'm trying to finish that train by christmas...to go with the 'Polar Express' thing....but from where I'm now....its not gonna happen
Thanks,
Jeff

......but anyways, I can't seem to figure out how the linkages between the wheels on a steam powered train works...
...the only thing that I'm working off of is a top view (which is like shit...


I'm trying to finish that train by christmas...to go with the 'Polar Express' thing....but from where I'm now....its not gonna happen

Thanks,
Jeff