Not showing on your homescreen? If so, then go to your application screen, press the Menu Key and select Show All. Do you see it there but grayed out? If so, highlight the app, press the menu key and uncheck Hide.
If it's still not there, you will have to reload the OS and make sure you have notes checked to install it.
__________________ The difference between stupidity and genius is that genius has its limits. When you take things for granted, the things you are granted, get taken. Even a mosquito doesn't get a pat on the back until it starts to work. Too many people miss the silver lining because they're expecting gold.
[BES 5.0.3 / GroupWise 2012 HP2]