It's probably the easiest thing in the world. I have the same taillights on my 96 lx sedan.

1.You just open the trunk.
2. Take off the covers (right behind the taillight) and unscrew the four 8mm (I believe ) screws.
3. Pull the taillight out and put the new one in.

NOTE: Make sure you take out the bulbs out or else the taillight won't come out. (common sense). ALso with those tailight you would have to buy some RED bulbs for the brake light.

The ones on the trunk..... you do more or less the same thing. Unsrcew the screws, take out the bulbs and push it out. Hope that helped.