Parking lights: You have to go through the wheel well and pull the liner out via the push "pins". . .once pulled back, you can reach up into the fender to get at the parking light. . .do it when its light outside so you can see clearly. . .
Fog Lights. . .there is a grey clip in the rear (disconnect that). . .there is one screw at the bottom of the light that holds the whole thing in place. Maneuver the light out of the bumper exposing I think 3-4 more screws on the light to gain access to the bulb. . .reverse the process. . .
Good luck with the bulbs. . .Have a similar set-up in my X-Terra w/ exception of the fog bulbs went with cheaper Hella super white fogs. . .found them at Autozone for ~20/pair. . .bulbs match pretty well. . .
Good Luck. Send me an e-mail if you need any more help