Glass2k - Small little program that allows Windows 2000/XP users to make any window transparent.
DeskPins - DeskPins can be used to make any application topmost, that is, to keep it above all other windows.
RBTray - Allows almost any program to be minimized to the system tray by right clicking its minimize button.
Skybn Window On Top - Window on Top can be used to make any application topmost,that is to keep it above all other windows.
Stay On Top - Set a window to stay on top with this single-function but handy application.
WindowTop - Easly set any window on top, just move the mouse to the top area of the window.