Loading Mp3's from your server?

Ok what I have is a server where I store my files. On there I have my .html, .swf and .mp3… all in the same directory. What I want is to be able to click play (button in swf) and have that file load and play the music. But I want it to load dynamically (not sure if that’s the right word) I read the sound tutorials here and they work fine… but only if I import the music into the flash file and set up a linkage for actionscripting and then call the linkage name when the button is pressed… please help me asap

please if you can just walk me thru what I would need to do (and of course how, ie the code I might use) I used (but that is with using the import and linkage name) :

 on (press){ 
song = new Sound (this);
song.attachSound ("LinkageName");
song.Start(0,99);
}

thank you