There's no way you can convert from mp3 to mod.
Mp3/wav files are 1 single stream of sound saved into a file.
Mods only have the sounds for the instruments in them only. Say i have a list of files:
I will then tell the mod to play these wave files in a certain order which makes out rythms and riffs, but it will always just be the single wave file for each instrument that's stored in the mod file.
here's a pic:
Just to be picky: It is possible to convert mp3s to MOD in a way. First you have to make a sample/instrument out of the entire mp3 file (by converting it to WAV) and then save out the MOD that plays only that sample. There's no point to doing this, however, as your music will take up far more space than it did originally.
Oh, and my name isn't "wrong", although that was a strangely appropriate way to misspell it.