iMac Keyboard hotkeys

I just bought the new really thin iMac keyboard. I hooked it up to my powerbook that is closed with an external monitor and everything works fine... except I can't get any of the hotkeys like volume up and down, brightness, etc. to work. Right now instead of their hotkeys they are doing expose or Help. I know I can change some of the keys through the System Prefs, but prefs doesn't seem to be recognizing any F keys past F13, which means F14-19 are pretty much useless.

Before I had an external BT apple keyboard that had volume keys separate of the F - keys, and that always worked fine. Does anyone know if these keys can be used with a closed apple laptop?

Thanks in advance.

Check your preferences with what you have set for each key.

Ok, I have checked preferences and the expose keys are set to F9-F12. But as I said before, I can't get the keyboard shortcuts to recognize F14-F19 so changing them won't do anything. Even when I change them, the special hotkeys still don't work.

http://www.apple.com/downloads/macosx/apple/firmware_hardware/keyboardsoftwareupdate11.html

yay! sorry if everyone already knew this, but I am sure it will help everyone with this problem in the future. All you have to do is download this software update for the F14-19 keys to work, and then everything works great.