you can change the 2d3d commands in skin.ini in your defualt folder to Toggleview which will toggle between all three. At the moment there isnt a command to switch between 2d straight to birdseye.
FD should make the winamp volume lower only, at present it won't work with Frodoplayer as I believe it uses MediaPlayer. Maybe Frodo can help us at some point to allow us to lower frodos volume before a voice prompt.