It was last weekend...
http://www.homebrewtalk.com/f56/how-roast-whole-pig-version-2-0-a-130032/
Pig Pit 1.0 was just a bunch of bricks tossed into the pit (the pics at the beginning of this thread show it).
I got tired of my back yard lookin' the way it did and wanted something a little nicer so I took all of the bricks out and then bricked them in straight (or relatively straight) with mortar. The problem was when they were just tossed in, the walls flared out at the top... so the bottom of the pit was three feet wide but the top was four feet wide. When I bricked everything in straight, the whole thing was only three feet wide all the way up. It was also not as long at the top once bricked in.
I wasn't sure a pig would fit...
so I decided to have the bottom brick part as just the "firebox" for whole thing and then the cinderblocks would be where the pig sat and cooked. 1) It would give me a lot more cooking room 2) I think it looks a lot nicer (or it WILL look a lot nicer once I completely finish skinning the cinderblock with red brick). I filled the cinderblock with dirt so it is insulated really well and then the red bricks I'm skinning it with will just add to the insulation. The lid is insulated with Nomex (that white cloth you see in the vid) so that is completely insulated like an oven door.
I am really pysched though because the new pit works absolutely perfectly. I couldn't have hoped for it to work any better.
Take a look at the vid on the new thread I linked above and you'll see how the pig comes out.