Bios Upgrade

I have a AbitKT7A Raid Motherboard with a Thunderbird 1Ghz which works fine.

I have just purchased a 1.4AMD Thunderbird, but my board does not support it unless I flash the bios which Iam not very sure how to go about it, my bios version is 1.03 B 1, there seems to be so many versions on the Abit website and I just don’t know which one to download, and when I do download the correct version what do I do with it?

Please Help


Jomo the man