Does this just involve an ISO file of OSX?
That was what I used, plus vmplayer.
To get vmplayer to install the ISO you will need to use unlocker:
http://www.insanelymac.com/forum/files/file/339-unlocker/
Once you have created the VM (don't start the VM), edit the VMX file and add:
smc.version = "0"
You can then boot the VM with the ISO.