have a 2g apple iphone which is upgraded to a 3GS. My phone is not detected on the itunes on my macbook when I plug it in. It is not mounted on Iphoto either. The phone just keeps charging but cannot be synced. I have erased and reinstalled the latest version of itunes. I have tried restoring the Iphone as well. But nothing seems to work. Plz helpppppppppppppp!!