Hi,
I managed to get esxi booting correctly.
start the ESXi installer again, and when it first starts to load its installation program hit shift-O ('oh' ... not zero)
At the bottom of the screen this presents you with ">runweasel"
Leave this as is, but type SPACE "formatwithmbr"
so it should look like ">runweasel formatwithmbr" then hit enter, and the installation should proceed. Reboot the pc, and you SHOULD now be able to boot from the hard disc that ESXI is installed on.
