HolyReaver

I will just give a brief overview of the issue here, and if any more details are required, I will give them. I am a student worker at a university library, and I was offered the task of creating a new PE image. Really simple setup, we just use the PE disc to lauch Ghost32 and install various Windows XP images for the appropriate machines. The trick however, is that some 100 or so computers that we use this method for are 17" Silver Intel iMacs, roughly 2 years old. They run strictly XP, not an ounce of Mac on them except for drivers necessary to make the hardware run properly. The current PE disc we have is based off WinPE 2.0 and has a cmd prompt interface with various options, specifically one to install the iMac NIC to allow for smoother ghosting. The person who created this disc has since left, and it was suggested that we redo the PE image so documentation can be written up for it. As well, we wanted to try to build an image on a flash drive, as using a CD is clumsy enough, let alone when you are using it in an iMac. So now the problem, I have built a new PE image using WinPE 3.0, and a few files from VistaPE to create a GUI. It works, boots fine from the flash drive on any PC. It won't however boot on the iMacs. I have researched as much as my limited knowledge allows me to understand. I know that the iMacs don't support legacy usb, yet you can get around that and install OSX on a flash drive that the Mac will recognize as a bootable device. I have managed to create a boot.efi file on my flashdrive that makes the device show on the boot screen, but it doesn't target the PE files so it just boots into the Mac's OS. I also know that my PE image will show up as bootable when put it on a firewire drive, but Windows won't actually boot through firewire. So my question is, is there a solution here? I suspect there is something simple and obvious I missed, but I wouldn't put it past Apple to have made it impossible.