Windows 7 drivers will be of no use. You need Windows CE drivers. I don't see them for the 82579 on the Intel download site. You might try the 8254x driver to see if, by luck,it works.
I also see on the Windows Embedded resource page that a CE 6.0 driver should be available for the 8257x chips, specifically as E1E51CE6.dll so searching for that might be useful.