If you have your headset set up with your curve go into the media player and start playing a song. Hit the BlackBerry button and see if your headset is listed. It will say Activate and then the name of your bluetooth device. If it is not listed then it won't work. You can pick up a stereo bluetooth headset and that will work though.
Oh okay, it's not listed, I looked all over for any way to move the music to the headset. I use the 3.5 mm headset but it's so hard pulling the plug out I'm afraid I'm going to hurt the phone or something :P Lol, thanks for the help.