When you created your Facebook application, you were asked for a namespace. You really shouldn't need it beyond that though. Autotune will automatically fetch the namespace for you and use it within JFBConnect where needed. You can also set the namespace in Autotune under the "Canvas" settings tab, I believe.
Are you having an issue, or can you explain what you need the namespace for?
Thanks for getting back to me
The Namespace field was blank, but I found the info here on how to add it:
https://developers.facebook.com/docs/te … -tutorial/