I found this online the other day:
[url]http://irrlicht.sourceforge.net/forum/viewtopic.php?t=37735][/url]
It works and is for Win XP and up, you may want to switch to irrdot, not irrxml.
irrxml wont work in mt. you can use any font, but MAKE SURE THE SIZE FITS JUST LIKE THE DEFAULT FONT IN MT. OTHERWISE IT MIGHT NOT WORK.
EDIT: MAKE SURE YOUR WINDOW LOOKS LIKE THIS:

Heres the old font map: (MAY HAVE TO DOWNLOAD THEM TO SEE THE WHITE BEHIND OR HIGHLIGHT THEM.)

Heres my one with the Minecraft font:

Note the face that the question mark IS IN THE SAME PLACE AS THE OLD FONT MAP.
If your font map works, then screenshot it in MT and post away!
This way we can find the best font map, rather than lucida that5 we have seen, since forever.