I'm not sure what extension that is. Are you sure that's what the extension is called? If you are sure, Search MMF2's extension library or other places that list the extensions. Other than that, I have no clue.
edit: Then rename "clickteam-movement-controller.mfx" to "move.mfx" never mind, it's now an updated movement controller by the same author but it doesn't simply work like it used to. (i.e. you can't just rename it)