To correct the sound/mic issue use this driver and manualy install it through the Device Manager:
http://www.mediafire.com/?dg0cmmkm4y4
Unzip to a folder.
Run installer. If it errors use Device Manager.
From Device Manager, right click "Audio Device on HD",choose Update driver.
No to connect.
Install from a list or specific location.
Don't search I will choose the driver to install.
In the list of common hardware types, scroll down and select Sound, Video, and Game controllers.
Remove the check from "Show Compatible Hardware" and click on "Have Disk".
Next...browse to the unzipped folder and choose the "WiSVHe5.inf".Ignore XP when it complains.
Reboot.
Thanks,
Bill