I don't know what word processor you are using, but I've just checked my Word 2002 since installing SP2. if you go to "Insert" then "symbols" you should get a selection of the characters you require. It works for me and I think is the replacement for the "character map" programme in Word.
I should also add that when I first got it, this facility would not work and caused some form of crash when I tried it. I went to the Microsoft update site for office updates, updated the software and this facility started working correctly.
best of luck
P.P.