the hda audio bus driver is required and not found

I am using the Landesk HII to load images on a dell optiplex 780 from a dell optiplex 755.  It comes up with a message to please reinstall the sound driver.  I try to install the sound driver and i get this error

the hda audio bus driver is required and not found

I have tried to install KB888111 patch from Microsoft to resolve the error.  but the patch will install only when the computer is at sp2.  i have sp3 installed.  I tried a fix i found to change the value of the location below to 200 in the registry.  this should fool windows into thinking that it is in a sp2 enviroment.

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Windows]  change CSDVersion to 200

This allowed me to install the patch provided by microsoft but it didn't install the HDA audio bus driver.

I have selected the driver to be injected when the image comes down.

Any help would be great