Originally Posted by
DakarM
you can't without the mp3 ringtone hack or i think apple started letting you if you pay for it.
the hack was to change the last three letters of the extention on the mp3 song
alittle reaserch show that if you have itune 7.4 no hack is needed. Just convert in ACC then change extention to .m4r and dump it in you ring tone folder in itunes and your set.