FirstBase Autodesk 2009 Downloads (AutoCad)

For the 2008 season the FIRST Robotics teams were allowed to download 2008 Mechanical Desktop which included AutoCad 2008. However, this year Autodesk is only giving away Inventor 2009. I want to use AutoCad for creating some technical drawings of our robot. But, I no longer have a license for AutoCad. I do not know how to use Inventor and therefore, would prefer to use AutoCad. Is there anyway for me to get a license, for my robotics team, without having to buy a new full license of AutoCad?