In order for you to solve this problem you have to follow these stept if your running windows:
1'st step is to go into the device manager
2 step is to go to portable devices (it is rught under network adapters)
3 step is to right clic apple iphone and click update drivers
4 step is to brows your drivers from C:\Program Files\Common Files\Apple\Mobile Device Support\Drivers
After that your itunes will pump up alown and youl see your iphone right there.
Good luck and sry for my bad righting.