The old symbols are on the CD that you used to install the game.
On my computer (Windows XP) you'd go to MY COMPUTER, right click on the drive with the CD, and when the menu drops down click on EXPLORE instead of OPEN.
You'll see the game folder: if you poke around in there you'll find the file that you need. Then just copy and paste it and you're probably good to go.
I don't own any of the MC series so I don't know exactly how the files are set up.
But there are probably alternate symbol sets for the files that you want included in mods by Volcano Man
http://www.volcanomods.com/
and Jison
http://www.hist-sdc.com/MapMod/download.htm
History is a bad joke played by the living on the dead.