I was looking forever and I finally found TPT's first verion. If you want to play it here is a link--
http://www.geeks3d.com/20091109/download-the-powder-toy-physics-game/
I actually have an older version. One without the online capabilities and when METL could be easily melted with FIRE.
WOW thats old
Even older:
Oi is it a virus
Tell me