Sidney,
It sounds as if you have not synched your phone to iTunes in your computer. Whether you have a PC or a Mac, I would suggest opening your iTunes, connecting your phone to a USB port on your computer, and synching your phone. Then follow instructions for updating your phone's software.
Alternately, if you don't have a computer, power down your phone completely...for at least 10 minutes. Then power back up and see if that does the trick. Lots of weird stuff is fixed in this way.
Best of luck.
WoodyMaples