I found the following Vista drivers for this device. They should also work on Windows Server 2008.
GIGABYTE Intel(R) Chipset , Vista , ver 8.2.0.1014
http://europe.giga-byte.com/FileList/Driver/nb_driver_w466_w566_chipset_vista_8.2.0.1014.rar
Gigabyte Intel(r) Chipset Software Installation Utility 8.3.0.1013
http://asia.giga-byte.com/FileList/Driver/motherboard_driver_chipset_intel_inf_9xx.exe
Intel Chipset INF Update Utility Ver: 8.3.1.1009
http://downloadcenter.intel.com/Detail_Desc.aspx?agr=N&ProductID=2261&DwnldID=14528&strOSs=44&OSFullName=Windows*%20XP%20Professional&lang=eng
Try to install these drivers manually via the Device Manager by unpacking the installation files with WinRAR or any other extraction tool if the automatic installation doesn’t work.
