Systems Deployment

I have setup emboot as PXE server, this is all running sweet and I have made my boot image, with ghost on it, the issue I have is I need to restore an image on the server to another machine on the network, I have configured emboot to load the boot image to the right computer, but I dont know how to map the network drive where the image is on the server.
I have it currently so it boots from the PXE server and loads ghost automatically, I think I have the commands to restore the image automatically, but I need to show it where the image is first and to do that I need to map a network drive.
Net Use does not work as I dont think its there in the dos that is on the boot image.
I think I need some app that will map the drive via autoexec.bat file do this before i run the ghost command.