I am strictly a PC Windows user and I am creating true type fonts exclusively using Font Creator 5.0. Since I have absolutely no knowledge of Mac computers or the type of fonts they use, what would I need to do with my existing True Type fonts I created in order for them to work with Mac computers? Thanks! 
TrueType fonts can be used directly under OSX, but need to be converted for use by earlier Mac operating systems. More information about this can be found here:
http://www.high-logic.com/fcpfaq.html