Okay, I will explain this in the long droll way it has been done MANY times on this forum.

First, the MP3 has to be converted to WAV, so it is something a tracker can remotely understand (tracker being a program that is made for making XM, IT, S3M, MOD, I recommend Modplug Tracker at http://modplug.com). Then, the WAV has to be inserted as the C4 octave I believe (maybe C5) and you must insert enuff patterns of nothingness so that the whole song fits in the IT XM whatever. Now, you have one heck of a file that Jazz 2 MIGHT be able to read.

How's this? go to Modplug and download some songs off there or somethin? It's much easier.