You guys are working to hard. The easiest way is go here...
http://www.planetamd64.com/index.php?download=171
and download the already properly modified files. Extract to a folder. Copy and overwrite the original INF files. You still have to do a manual install of the driver. (have disk) Then you are good to go.

You have to register to access the download page.
EDIT BY MOD: Fixed the link

EDIT2 BY MOD: Fixed the description of a link for those copy/pasting.