This was not the first time the Mythbusters took on walking on water. The first was in the Ninja special. Both times they made ridiculous shoes to see if increases the surface area of the foot would work. Unsurprisingly, they got the same result this time as last time- people can not walk on water- not even cute little acrobats.
The Build Team provided an important public service announcement tonight. If you are anywhere near an explosion, get behind something, anything, really. As long as you have something to break the shockwave around you, your chances of surviving increase dramatically.