I figured it out YAY!
O.K. the problem is unless u have OSX you don't get the LimeWire Mp3 player built in Sooooo you have to open your mp3 files with a different program. I'm using Quicktime. I went into my Hard Drive and opened the LimeWire folder, made an alias for the "shared" folder which holds the downloaded mp3s. I open my Quicktime click open movie then click on "shared" folder them the mp3 i want to play and it converts it ! Sounds complicated but it's not and with a Mac what choices do we have???grrrrrr This is my last Mac

I hope everyone figures it out o.k. Good luck!