Unfortunately,
this is the best picture I can find of Atlas. Considering this was taken the night-ish before ship, it's a little more completed.

It'll at least show what the window motor was used for and the materials for the arm...
(Note to self: buy a camera next year so I can take halfway decent bot pictures....)
Here's a link to a video of the bot in action, a little earlier in build. (Note: before the second pneumatic cylinder was added to the arm.)
D5 Robotics -- Atlas, the Awakening
This one shows the arm in its full splendor.
D5 Robotics -- Customize your Pizza!
Sorry I don't have better pictures, feel free to ask for more clarification.
EDIT::Oh, yeah, it turned pretty well...as long as it was going full speed. We thought we had a traction problem, but it was really a code-making-the-treads-go-too-slow problem. Hence the grinding of the links.