If they are the fuzzy CA type... read up on the installing CA hinges threads. (bunches of them)
USE THIN CA! (medium is WAY out. Thick is for the thick headed.

)
Get the hinges in place. Flex the aileron to open the hinge line (keep the hinge gap small... just making room for the tip of the glue bottle by deflecting the aileron)
Put one drop per hinge, at each hinge. Now go back and put one more drop on each hinge.
Deflect the aileron the opposite direction and put 2 drops CA per hinge.
Deflect to the first direction... 2 drops per hinge
Now the other way again... 2 more drops per....
Now you can sit and flex the aileron back and forth a few times.
Its done.