Just a heads up that FaceFX Studio 2009 requires the use of "shared geometry". If you are using the Ogre Exporters distributed with FaceFX and simply do a "File->Export All" type of an export, then this option is selected by default.
Currently the only exporter I'm aware of other than OC3's custom Max and Maya Ogre exporters that support shared geometry is the Ogre Maya exporter. We are working on removing this restriction in future versions.