FH isn't made for Mac's, only PC's. I do know there is a thread about FH for mac's, and I think there is a unofficial download thing there, But I don't know for sure, and I don't know where the thread is. I'll search and you can have a look through.
There are programs out there than can allow you to use PC things on Mac's though, but from what i have heard you really need the know how to use them properly.
