I\'m trying to use the umbraco cms for a few facebook apps. My idea was to have each facebook app in an aspx page in umbraco (these \"apps\" are very simple, only a few imag
See section 4 of this post on Prabir's blog for details on how to set Facebook settings in code.
Edit: You will also want to be very careful when managing instances of FacebookClient to avoid confusion ie statics etc.