I DONT NO HOW TO Z SHARE, BUT CHECK IT OUT ON MY PAGE
-Go to zshare.net
-Click the "Browse" button
-Locate the mp3 on your computer
-Type the song title in the "Description" box
-Make sure the "Share with a friend / colleague" option is clicked
-Make sure the "I have read and agree to the TOS" option is clicked
-Click the "Share it!" button
-Copy the link in the "Link for forums:" box or the "Direct link:" box (doesn't really matter which one)
-Paste the link for us
And it's basically the same directions for any upload site (megaupload, sharebee, usershare, etc...)