This seems to be a must have for many people. Would be nice if we could have this running in near futurfe. I found that you can download a few old trialversions from http://www.brothersoft.com/autocad-download-78215.html (this is autocad2006l on the right side you can see the downloadlinks for 2004/2007/2008 as well)
I'm currently testing AutoCAD 2004 and with a bit workarounds/tweaking it seems to run but the main issues seem to be with the installer; I'll add some info to the appdb; i'll test other versions lateron; if someone wants to join testing feel welcom ;)