Quoting Ezekiel ~
Cute and Neat actually, not messy.
You just have to tighten the link threads and add another motor for additional steering.
Also try not to use worm gears unless you're dealing with heavy lifting. You can try redirecting the axle of the motor through a 90 degree turn with bevel gears, that way you have space to fit two motors. (:
Thanks! I would have used another motor for steering, but at the time I only had the one motor. I also attempted taking out a link on each side, but then it was way too tight. It can be hard to make treads work sometimes :P