OK....I think I figured it out. I don't need to write an app, I just need to put in my site address as the callback URL. Cool...... 
Thanks for the reply.....I anxious to get this working. Like you I use jomsocial, and the possibilities are exciting. Here are my questions. Do I need to write a connect app in order to make this work? What should my callback url be?
Thanks 
Hey Guys-
I must be missing something here. I just purchased all the JFB connect items; component and both modules. I got an api key and put it into the parameters. I am running joomla1.5.9. When I am logged into facebook and my site, and I hit the facebook connect button I get a redirect to nowhere. Do I have to create an app which allows for the connection, or should it be allow a connection and mapping users from their account on my site to their facebook accounts. Can you please help me on this.
thanks
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