QUOTE(Metuas @ Jun 12 2008, 08:42 PM)

Wikipedia. Look up OpenDarwin. Last remaining ISO for 7.2.
Or, you could download darwin 7 or 8 ISOs at Apple's site. The source for Darwin 8.1 and higher is also available.
Both totally legit and free.
There is a binary release of Darwin 8.01 that installs & works fine.
Before the downfall of opendarwin, there was an update script that took it to 8.1, but I can't find that any more..
any solution for updating the 8.01 install would be useful, I have been unable to find anything of the sort.