imagepsloadfont returns wrong datatype

Hi- I *finally* got imagepsloadfont() to work on my Mac OS X box (it helps if you actually have a .pfb file). Now I'm having problems with another aspect of imagepsloadfont(). The docs say it should return an int, however it's returning a resource. I'm guessing this is why imagestring and imagepstext aren't working - because they require an int for the font. Is this a bug? Am I doing something wrong? Am I not understanding the docs? Thanks, Michael