http://www.we-r-here.com/cad/tutorials/level_1/1-1.htm
Is the course i used after i Downloaded autocad 2006
if you need the torrent, that you of course own the actual version of autocad 2006 already and just need the install as a backup, AIM at flintfireforge28
I did chapter one only over last night so i guess its a pretty good tutorial/course