Hehey! Welcome!
Yup, rear lights require removal of the orange panel (a butter knife does this well) - try to pry the orange venty bit up from the rearward side, just check there's no screws holding it in first (I can't remember off hand), then directly behind that are 2 more screws, and when you open the boot there are screws holding them from above hidden behind little plastic flaps. Once all the screws are out they practically fall out. You can't take the plastic front off easily but you can open all the lamps up and dry them out easily enough.
I'm not sure what you're saying about your fogs - do you not have the fogs at all? Have you bought a CS bumper and need ones to fit?