program+to+make+windows+xp+programs+always+on+top

AlwaysOnTopMaker or Always On Top Maker

CTRL-ALT-T toggles the window to be on top or not (note that this does not seem to work for the notepad that comes with the os)

There is also Deskpins downloaded here http://www.snapfiles.com/get/deskpins.html

There is also powermenu downloaded here http://www.abstractpath.com/powermenu/