It should have given you a zip file. Inside the zip, you'll see a folder called 2KXP. Copy that to your desktop, and then open device manager > find the network controller > right click it > click Update Driver... > select "No, not this time > Next > select "install from a list or specific location" > Next > check "include this location in the search" > Click "Browse..." > Select the folder where you copies the files to (i.e. your desktop) > Click Next > It should hopefully find the drivers.