YAY welcome to gimp fellow...gimper? lol
Well anyways try here:
GIMP Talk
I couldn't find a tutorial of it when I searched *blind*, but I remember seeing one at that site - because that's how I learnt! I think it's in the general help section.
if not then, if your using xp
Download the font> unzip it > copy the unzipped file > go to start > control panel > fonts > paste it in that folder> open up gimp and
Voila!
hopefully the fonts there..
well I hope it works for you!
EDIT:
eeepp!
I just read you can't find the font folder, well do a search on your computer put something like "font" in or something