http://www.xbox-scene.com has alot of good info if you are new to the scene. Also, I found it difficult to find the info I was looking for in that site cause of too much info the site had. Here is the direct link to the info you are looking for. http://www.xbox-scene.com/versions.php
that should be a 1.0 or 1.1 - i'm pretty sure they didn't start on the 1.2 till december 2002. but i've seen some made in november that were the 1.1 motherboard with no solder in the holes. I'm assuming these were used just to use them up before they went with the 1.2, but to fight the modders they left the solder out of the holes.