No, the doors weren't bricks in the brick menu. You would put a 4 by 4 brick above where you wanted the door to be, set your wrench to JVS mode (a keybind) and then selected your door. The doors opened without clicking them :D. JVS portals was pretty epic too.
ONTOPIC: v7
That was for V8 too, I remember. Also, I remember trying to make a door without keybinding first. Since my friend's keybind was p, I tried different combos until it took a screenshot.
Ontopic:
Demo in early V8
Bought the game in late V8
ID is 4283
I got the confirmation email on March 9, 2010.