I feel Your frustration.
I am also looking to find the last Audio Driver Update: Intel Desktop Board D965 Sigmatel (IDT) 92XX download that contains Intel Audio Studio 2.7 plus the Sonic Focus Encoders (that support the audio studio) for both Windows Vista and Windows XP.
Currently, the Intel Audio Studio has been discontiuned (as Sigmatel is out of business), and no loner supported. The Express Driver disk is currently no longer available, and ALL websites are linked to the broken Intel download link - I can't find it anywhere.
I contacted Intel Support - no luck.