Hi matte.
Facebook has changed the way they do the api for the 18th time, so this extension is currently not updated. However, if you can give me a little more time, I have a new Facebook extension in the works, that will work in all runtimes and is a lot easier to use.
wow fantastico! non vedo ora di vederla e di poterla usare, spero presto! 
grazie mille 