This is the most updated firmware for this motherboard. It is not hosted on MSI's website. I obtained this from a customer service rep.
The following files are found inside the driver download file.
|A7151AMS.123||524.3 KB||22 Nov 2006|
|Afud408.exe||114.6 KB||7 Apr 2006|
|How to flash the BIOS.doc||36.4 KB||2 Sep 2004|