Keyboard Driver not working correctly with certain keys?

Alright, so i've been trying to get 64-bit Windows 7 on my iMac by adding drivers one by one. The only driver that's giving me trouble is the keyboard one. The F-Keys do not work like they are supposed to. They are just the Windows default meaning the brightness keys don't change brightness and the sound keys don't change the sound. I have tried both the Leopard BootCamp drivers as well as the Snow Leopard BootCamp drivers and neither have changed how the F-Keys behave. Is there another driver i'm missing that I have to install?

Also i'm using the Apple Wireless Bluetooth Keyboard for whatever that's worth.