Does anyone know how to make a custom font from individual images in FF3?  Whenever I try to open an existing font to edit it, there are no sprites that I can see.  I know people use custom font sets for stage preview pics, and I want to do something similar.  Any help's appreciated.

Never mind, found this thread which explains it.
Sorry for the redundant post, and to anyone else wondering, the link explains it. 
You just have to download Font Factory.