I read:
I have quite puzzled by iemlibs on debian, there is no iemlib 1 or 2 or mp3
you have to get the libs seperately and compile and install them (I don't know if there's a debian package, can't seem to find one for ppc) get it here -> http://iem.kug.ac.at/~musil/iemlib/
however guis are working,
the gui elements are now part of standard pd
HTH x