Can any please instruct me on how to take the rear taillight out and replace it with another one?

 

you gotta be kidding!?!
I mean, how can you post 145 times but not know how to remove your tail-light?

Open the trunk, remove the clips holding the trim panels around the tail-light, remove the plastic trim that sits on top of the rear trunk panel (where the trunck catch is) and you'll see the tail-light is held in by 4 or 6 x 10mm nuts. Remove the electrical connector, lights panel and unclip the harness from the tail-light. Also remove the clearance light connector as well. Remove said nuts and force the tail-light out - it'll have sealant all around it so expect to use some force.
Replacement is the opposite and remember to use sealant.

BadaBing!

 

wow. thats just like, wow