I don't see the info at that address. Do you have a dirrect link?
I always use Optrons rather than the desktop versions and have never had to do any bios update with either Ausus or DFI MB's just becuase the CPU had Optron for a name.
You don't even need a floppy. With the Asus Update util, you can do it from Windows. I hope a couple of clicks to ensure you have the newest bois isn't too much for you.