I may be wrong but, as far as I know, Flash uses any fonts which are installed on your computer. Flash will save the actual shapes of the fonts in it's files so that they are not dependant on whether a user has a particular font or not.

I usually get fonts from: http://www.mediabuilder.com/fontlibrary.html

On a Windoze computer, just unzip these downloads and pop them into C:/WinXX/Fonts/

-- Leto