1. Connect your device to your PC and copy Superuser-3.2-RC3-arm-signed.zip to your device.
2. Boot into ClockworkMod Recovery. To do this,
i. Power down your device.ii. Press and hold the Volume Up, Home and Power buttons until you see the Samsung logo appear.iii. Release the Power button but continue holding the Home and Power button until you get to CWM 3. Use the Volume Up and Down buttons to navigate to and highlight Mounts and Storage, and press the Power button to select it.
4. Highlight and select Mount system.
5. Go back to the main menu.
6. Select Install zip from sdcard.
7. Highlight Choose zip from sdcard and select it with the Power button.
8. Navigate to the location of Superuser-3.2-RC3-arm-signed.zip on the next screen and select it.
9. Select Yes – Install Superuser-3.2-RC3-arm-signed.zip.
10. Go back to the main menu and select reboot system now to restart your device.
Once the device reboots, it should have root access and you will be able to run any root-requiring app you desire!