I did manage to download them.
Better download from this site:
http://www.studiobit.pl/ftp/BIOS/
Your board is the first AZZA board in the list.
The BIOS you need is the 6IBP-6IZ.ZIP
02/04/1999-i440BX-W977TF-2A69KP8AC-00
02/04 6BT FOR 440BX JUMPER (YEAR 2000 READY)
But, it doesn't support large HDDs. So, I've patched it for you here:
http://wims.rainbow-software.org/ajz/
If you do try it, please post your results.
Note: I only patched it upto 64GB support, because your HDD is smaller, and because it's a safer patch.