www.mrbios.com sells bios and will cross-ship. your motherboard manufacturer may sell BIOS's also.
if you have a friend with the same motherboard, check the electronics parts supply stores in your area. they may be able to reprogram your chip from your friend's.
last ditch, very dangerous, not recommended option: if you've got a spare motherboard, you can boot it to DOS, pull that BIOS chip and replace it with yours while the PC is on, and try running the BIOS upgrade for your motherboard.
So I was playing with my Bios Rom and adding a custom pic of Jonna Dark leaning on a Perfect dark logo with some program called my pic. After I flashed the new bios, it was dead.
I thought, oh yeah, gotta reset the jp1 jumper to clear the bios settings so it will boot.
Well I did that and it still will not boot.
Then I though ooo yeah, I got that top hat thingy, so I can just pop that over my old bios and good as old. I can redo my bios after that and everything will be ok!
Well when I put the top hat chip on, I got long beeps over and over and since its award bios. THAT MEANS NOTHING!
So *** is a fella to do? FYI, its a $150 mobo. Replacement not really an option.