Have not got pics but its not too hard.
-With the internal trim (if you have it ) removed you should have the back of the tail light area exposed.
-In the corner against the guard is two (10mm i think) nuts with a bracket that the trim clips onto. Undo these on both sides.
-looking were the boot latch is (on the inside oposite the 'skyline' logo of the bar) there is 4 bolts (again 10mm i think) 2 of which have a little plastic clip holding the wireing loom, remove said clip and undo bolts. That should be all on the inside (from memory, but have a look around incase i missed some)
-Remove numberplate, remove then unplug revese and number plate lights and also the bolt that hold the number plate holder down (if its there)
-looking under the car there should be a single bolt (again 10mm) on the left and right side were the end of the bar meets the guard, closest to the wheel, undo these.
There is 4 bolts holding the tail light in from memeory (2 top, 2 bottom) have a look will be easy to tell and then just the glue stuff.
That should be it from memory takes no longer than 10 mins or so.
Cheers
Ross