Thanks for your help guys. I did the update and it worked out.
A couple of things to note:
1. Would be easier to be clear to noobs like me that you should not "overwrite the sub directories and files" that are not to be updated
2. copy and paste the install update url to the forum to perform the update.
This was not so clear for a non technical guy like me.
But I am happy to say it worked
Thanks.