I can only assume you haven't used Vista yet, because this is quite easy to respond.
Accessing the Device Manager: On XP click the start menu, right click computer, go the the correct tab and click the "Device Manager" button. On Vista click the start menu, type "Device" and click on "Device Manager".
Removing a program: On XP click the start menu, click "Control Panel" and click on "Uninstall program". On Vista click the start menu, type "Remove" and click in "Add or remove programs".
Configuring Windows tasks in general: On XP find whatever obscure way to change what you want one window after the other. On Vista type what you want to do.
Browsing the Web with firefox while listening to you MP3 collection: On XP open an idiotic page with a hidden MIDI playing in a loop, you mute the computer and curse the site; you music is gone. On Vista open the same idiotic page, click the volume tray icon and mute firefox, the MIDI is no longer audible and you can keep listening to your music.
Could give more, but I think that's enough.