BIOS flash problems

I went to the TYAN website and got what I think are the correct files to
flash my bios (2390w108.bin, and flashv73.exe).
The problem now is that I'm having trouble with a bootable disk.
I thought I made one correctly, but when I try to boot with the disk in, it
says there's an "I/O error".
How do I make a bootable disk?
What I was doing was formatting the disk in the floppy drive, choosing the
"Create an MS-DOS startup disk" option.
What Gives? Does it have something to do with running XP?
Here's my info:

BIOS Date: 08/03/00
BIOS Type: Award Modular BIOS v6.00PG
BIOS ID: 08/03/2000-8363-686A-S2390C
OEM Sign-On: TYAN TRINITY KT V1.03a
Chipset: VIA 82C305 rev 2
Superio: VIA 686 rev 34 found at port 7h
OS: WinXP
CPU: AMD Athlon(TM) 800 Mhz MAX: 500 Mhz
BIOS ROM In Socket: Yes
BIOS ROM Size: 256K
Memory Installed: 448 MB
Memory Maximum: 512 MB
Memory Slot 01: 256 MB
Memory Slot 02: 128 MB
Memory Slot 03: 64 MB
Memory Slot 04: 0 MB


Also, is this a good board?