tm6010 based tv tuner uses the correct firmware? or the audio part problem

hi,
My tm6010 based tv tuner is WINTV-HVR-900H, Model number is 66009, and USB id is 2040:6600. According to the guide, I use the firmware xc3028L-v36.fw from http://www.stefanringel.de/pub/xc3028L-v36.fw.
I'm sure this firmware is for Xceive products and is also suitable for this product?
I'm able to get video but without audio. Is it the problem of the firmware or the audio part of the module tm6000-alsa code ?

BTW, I have hcw66xxx.sys and hcwCP.ax from tuner installation cd-rom, and how can I extract the firmware from the .sys file ?