Vostro 1440 audio driver + WindowsXP

Hello,

  I have a problem with Windows XP system, that original has no support, cause there are only Windows7 drivers in download page.

But, I've successfully found and install all drivers except AUDIO.

Audio driver from Windows7 version has even WinXP folder in install directory, but installation finished with a error to start Audio service (stacsv.exe).

Is anybody can help me with this??? It's very important...!!!