Here's where I've got to so far:
-Created Win7 64 bit VM
-Clicked 'Edit Settings...'>Hardware>CD/DVD drive 1, checked 'Datastore ISO File' and browsed to my ISO and also checked 'Connect at power on'
-Booted the machine to the BIOS setup and changed boot order to boot from CD ROM first.
-Power On: I power on the machine and it fails to boot the ISO
I've attached a screen print of where it gets to. Why might it have failed to boot?