In your linked diagram, those appear to be hinge points on the outboard side of the outboard aileron. The actuators are on the inboard (wide) side, see the planview photo here:
Airbus A330 - Wikipedia, the free encyclopedia
http://upload.wikimedia.org/wikipedi...5b-dbs_arp.jpg
They are also external to the structure and reside in aerodynamic nacelles, because one needs a greater moment arm from the actuator than with the elevator, I would imagine.
Barnyard math based on this photo yields a length for the outboard aileron of 16 ft (~5m) while the elevator is about 30 ft (~10m) - this does tend to indicate the aileron but I don't know how much structure is missing in the debris.
The photo mentioned shows what a magnificently beautiful airplane this beast is - sigh
-drl