Update My Nexus S to CM 7.1

Below are the steps I took to upgrade my Nexus S to CM 7.1 recently.

1. Step 1: Download the update-cm-7.1.0-NS-signed.zip file of CyanogenMod 7.1 for my phone. 
2. Step 2: Transfer the .zip file to the root folder.
3. Step 3: Turn off my phone once the transfer is complete. 
4. Step 4: Boot into ClockworkMod Recovery mode by holding volume up and power buttons.
5. Step 5: Using the volume up/down (to navigate) and power key (to select), then navigate to backup and storage > backup. 
6. Step 6: From the main menu: install zip from sdcard > choose zip from sdcard > update-cm-7.1.0-NS-signed.zip
7. Step 7: Once flashing is complete, reboot and it is done.

CyanogenMod 7.1