I have managed to delete the path to my Music ID application, and was wondering if anyone had any ideas on how to fix that? I am assuming that it would probably just be a file replace, but someone else might know the backend better than I do.
You'll have to connect your BJ to your computer for this.
Explore your device through ActiveSync and go to \Program Files\MusicID. Make a new shortcut for the MusicID application and move that shortcut to \Windows\Start Menu. It is now back in your Start screen.
NOTE: You may have to set your computer to view hidden files and folders in order to see the \Windows folder on your BJ.