InsydeH2O dual boot vista

[sean darcy]

I've just got an HP g50 laptop with Vista and a Vista recovery 
partition. The g50 uses INsydeh2o as a sort of open firmware that 
interfaces with the bios.

I'd like to shrink the existing ntfs partition and dual boot fedora. But 
what about the insydeh2o? Is this part of system rom, so I just install 
  grub as usual? Has anybody set up a dual boot with insydeh2o?

sean