Launch Installer from the your SpringBoard.
Press to select the Sources tab at the bottom of the screen.
Press to select the Edit button at the top right of the screen.
Press to select the Add button at the top left of the screen.
Add the source http://installer.iClarified.com and press the large OK button.
Press the Done button at the top right of the screen.
Press to select the Install tab at the bottom of the screen.
Press to select iClarified from the list of Categories.
Press to select SyncFix from the list of Packages.
Press the Install button at the top right of the screen.
Press the large red Install button that appears.
A Notice will appear telling you to sync your iPhone with iTunes then reboot. Press the large OK button.
Sync your iPhone with iTunes.
Hold down the Sleep/Wake button for three seconds then drag the Power slider to the right to turn off the iPhone. Press the Sleep/Wake button again to turn the iPhone back on. Your contacts etc should now be synced correctly to your iPhone!