When I click on the link given by VydorScope
https://www.facebook.com/username/ which I had also tried to do when I set up Nicky's page, I get the following message:
"Before you can set your username, you need to verify your account.
If you have a mobile phone that can receive SMS messages, you can Verify via mobile phone. If not, please try to register your username at a later time."
FB will not let me go any further without entering my cell phone number, and it has to be a cell phone capable of receiving sms messages.
--JanG.