[QUOTE=timstratton;2154713]But it will not burn CDs or allow me to boot the laptop from it using an original XP Pro CD.[/QUOTE]
Think you have two separate problems here. Booting from a bootable CD/DVD needs to be enabled in the BIOS Setup before it will work. Press Del (or follow the on-screen instructions) to enter Setup when you first turn the laptop on and then look through the pages until you find a Boot Order or Boot Sequence. This should be set to something like CDROM, A, C depending on whether you have a floppy drive etc.
As for buring CD’s; what software are you using. I’d recommend ImgBurn, it’s free and includes any drivers etc. that you will need.
Nor will it read an ISO image to update the firmware.
I’ll need some more info on this one; are you trying to update the firmware for your DVD-ROM/CDRW drive? If so then you’ll need a firmware flashing program specific to your drive and a file containing the updated firmware.