Hello zippy_gg,
I had the same issue with my HP notebook and soundmax audio card. Finally, I gave up and was happy without sound. However, I tried once in a while uninstalling the driver and let the system choose the correct one. And out of a sudden, I have sound now. Unfortunately, I do not know why and what I did.
I would say, please uninstall everything, disable audio in the device manager and let your computer choose the driver. My update the driver through the internet and it is working now.
I hope you will have sound soon. Windows 7 is definitely a great system even without sound.
Good luck,
DIDDL