slacken clamp bolt on gear change rod .lift up gearlever gaiter, insert a drill/screwdriver/pin through hole in l/h side of lever to locate in corresponding hole in housing [lever will be to l/h side of gate in neutral] on top of g/box selector housing you should find a spring loaded plunger whilst rocking selector coupling on g/box in neutral push pin inwards to locate into housing, this will hold into casing it self.then re tighten clamp bolt release selector lock and lever locking method that you used. should now be ok.
k, July 2009