Leopard Screen Sharing and Switching Front App

Hi, I'm using the screen sharing feature of Leopard which is really awesome, except when I try to use Command-Tab to try to switch applications on the remote machine, it instead triggers app switching on my local machine. Likewide for Exposé. Furthermore, when I move my mouse to the bottom of the screen sharing window, it doesn't bring up the remote machine's dock as it would if I were sitting in front of it. So the only way I've found to switch apps is to start moving windows around, which is less than ideal, especially since most of my apps are usually in a full-screen state.

Any tips on how to do this? I wish there was a preference to let those things work on the remote machine when a screen sharing session is active.