acutally go to
www.fileden.com and create a user... you can upload ur music here for it then get the direct URLs to the mp3's and copy them to
www.myflashfetish.com from there they'll create an MP3 player that u can post to your myspace... i use this ALL the time
it will look something like this (sorry fileden wont allow HTML files to be uploaded and DivShare will only let u dl them)
http://www.divshare.com/download/7547591-8c0
this is the one i have on my myspace currently but u can choose diff styles and colors