Are their drivers for the Apple Keyboard in Windows 7 64bit?(Bonus point: Where's Print Screen?)
I use a Apple Keyboard on W7 Daily.

The key thing is to use a utility that lets you remap the keys.

Personally, I use a little utility called KeyTweak (It's Free!), but there are lots of other alternatives.

This lets you set unused keys to whatever you want - I have F13 set as print-screen, and F14-F19 set as media playback keys (play, pause, etc).
It can also let you fix the windows/alt keys so they are in the correct place, if that bothers you.

There are a couple of caveats, namely I have yet to find anything that lets you make use of the "fn" and eject keys. However, the additional (unused) F13-F19 keys compensate for that.