The HTC isn't giving an option to save a song in the music library as a ringtone. On my other Motorola Droid all you have to do is hold down on the song and then choose "select as phone ringtone". When you hold down on the song in the HTC all it does it give you the option to add it to a playlist, delete or play.
Has anyone figured out a way to get a MP3 to be the phone ringtone????