it was running 10.3. So when I put the DVD in and booted to DVD I went to untilities and then Disc utility and erased the hard drive in order to do a clean install.
The problem now is that the DVD I'm using is an upgrade DVD and it needs to see 10.3.9 in order to let itself install. Well, I just deleted it and now I can't eject this disc so that I can put a different one in that does not require a prior operating system in order to install.
My end goal is to do a clean install of 10.5, the latest operation system that this iMac will take.