TIMTS,
You need a Bootable Floppy, then download the latest BIOS from here:
P4R800-V DELUXE
Put the BIOS image and the Flash Utility on the Floppy and the boot from the Floppy and Flash the BIOS.
Then you want to go into the BIOS the load Setup Defaults. After that, go back in and put in the settings you want in the BIOS.
When you do the install, just have Keyboard, Mouse, Monitor, 1 Hard Drive Primary Master, 1 Optical Drive Secondary Master, and Vid card.
That will give you a bare bones install. See if you can get though the install with that configuration.
Take Care,
Richard
P.S. When you go to load the Mobo Drivers, use the latest ATI Chipset Drivers from the ATI Website.