I am actually rather annoyed its not like the Curves or others where you just snap the front o ring up and replace it. Taking the phone apart is kind of making me re think this.
Anyways, watching this youtube video as to how to replace it. Do you HAVE to un-attach the LCD screen from the board?
YouTube - How To Replace BlackBerry BOLD 9000 Trackball
please dont send me a link to the video on cnn.cn. Its even more confusing.