XPS 8700. Windows sever 2008 drivers

I just got a new XPS 8700 with WINDOWS 2008. I changed the operating system and the new 2008 SERVER is running fine but I wonder what or where can I get some drivers for WiFi network card. I have tried to install the ones that are downloaded from the download software but they are not working.

When I go to the device manager I can see some devices that are marked in yellow due to the missing drivers.

I appreciate your help.