PLEASE HELP!

I upgraded to 1226 bios with asus update and i am having problems mainly that my 9650se 3ware raid controller isn't working right. I want to flash back to a more stable bios but cannot figure out how. Can someone please link me to a utility that WILL work or explain how the heck to go backwards on a bios? Also what is the best more stable bios for Q6600?