If you dont have any problems relating to your bios, the safest is to not flash it at all, there is always a potential risk involved with flashing bios.
If you still want to do it, here is what you do
Download the following file and execute it to make a boot diskhttp://www.eurocom.ca/support/drivers/zip/boot_disk.exe
Download the bioshttp://www.eurocom.ca/support/driver.../56dr10207.zip
Unzip the bios files to the floppy
rename autoexec.bat to flash.bat, to make sure that the flashing isnt autoexecuted, if you forget to remove the floppy when you boot after the flash
Make sure your floppy is first in the boot sequence in bios
boot the floppy
at the prompt "A:\>" or "A>" type "flash" and press enter.
wait until the flash is done, it will beep during the process, this is normal, and do NOT power off the computer under any circumstances before its done.
When its done, remove the floppy and boot into windows again