I have tried everything....how do I make limewire download my mp3 as an audion file and NOT an i tunes file and end up opening i tunes?

I have tried checking the audion button that says...play this and other files like it with audion


I have tried to check the button that says....disable i tunes from automatically loading....nothing happens here is just unchecks itself....my files play fine with audion...but still default downloading from limewire as i tune files and it ends up launching i tunes also...

running new Imac G5 panther 10.3.7