sorry for the late reply - internet at home stopped working
anyways here they are (both pics are for the RHS light but its the same on the other side)
there are 2 screws - one for up&down and one for left&right:
(cant remember which is which but it is obvious once you start tunring - haha)
(note the second one has those lil plastic gears inside - one of mine were f$%ked so had to open it like in that last pic and wind it manually)