To setup a Channel, you need to login on the front-end first. The process is:
* Setup your social network application and get your API/Secret keys. I'm assuming you've done this, but if not, check out our
social network application setup guides
* Enter your API/Secret keys in JFBConnect
* Enable the SCLogin module
* Login using Facebook, Twitter or LinkedIn
After you do that, the Channels area should show your user in the selection menu.
While setting up the channel, you may need to authenticate again with the social network on the front-end to grant more permissions.
I hope that helps explain,
Alex