Missing example source code

Hi,

I wanted to see the source code for an example on the Axis Artist page, specifically this bit of source code:
http://matplotlib.sourceforge.net/mpl_toolkits/axes_grid/figures/axis_direction_demo_step04.py

Unfortunately, I got a 404 not found error. Please would whoever is in charge of this fix the link? Several of the other bits of source code in this example are also not there.

Thanks,
Oliver