Help With Fonts Please

hi i have a problem, the only thing left to do in my game is changin the fonts because they look very bad and i dont know what else to do, i need this game by this thursday otherwise i will flunk,
i have installed two diferent versions of the game but none worked, also i have to meke them (the fonts) "stay" (ive read that you need to change them every time you install the game or something like that)
PLEASE HELP ME!!!

THANKS
PENGUIN