BlackBerry 8330 MR 220.127.116.11 Update
The following Known Issues have been fixed with this software update.
PRIOR TO INSTALL: Depending on what software version your device is operating, you may or may not be able to perform OTA updates (see below).
does this upgrade install the Blackberry Messenger?
Blackberry Messenger is preloaded on every Blackberry, the 8330 has BBM 4 installed. If you want the latest BBM 5 you can download it from the Blackberry App World. If you do not have the App World already installed, you can download it from http://blackberry.com/appworld on your phone.