Sigmatel Audio Driver Vista Is There A Sigmatel Audio Driver Compatible With Windows 7?

Is there a Sigmatel audio driver compatible with Windows 7? - sigmatel audio driver vista

I have a Dell E1405 with Windows Vista Home Premium with a codec SigmaTel High Definition Audio for my sound card. Is this controller with Windows 7, because the codec was released in 2007 and certified for Windows Vista. I had problems with the codec even if I tried, the first customer, but I do not know whether the final version of the work better with the controller. Suggestions?