Lost Via Domus Quick Achievement Guide Part II: Episodes 4-7

Episode 4
Castaways' Treasures - Photograph Each of the Castaway's Treasures
Get photos of Kate's plane ( in her hands), Locke's wheelchair (by the treeline) and Charlie's guitar (just behind him).

Medical Station - Photograph the Medical Station Emblem
You need to examine the numbers in the correct order around the beach. Go to the far right and examine the suitcase with bumper stickers. Head down towards the coast and examine the 8 made of seashells. Run across to the other side of the beach and examine the piece of the wing. Check the creates under the tarpaulin. Then examine the food cart to the left of Hurley and finally the dominoes to the left of Charlie. When you get the option, warp to the Medical Station. Run down and take a photo of the emblem.

Identity Crisis - Discover All The Memories in Flashback 4
Photo the folder in front of you. Then examine the folder, the recorder on the shelves behind you and the letter on the shelves behind that.

Button Pusher - Enter the Numbers
When you get into the hatch enter the numbers 4 8 15 16 23 42 into the computer.

Desmond's Past - Photograph 3 Items From Desmond's Past
Snap the mural on the wall, the jump suit in the washing area and the medical cabinet.

Radzinsky - Photograph the Blood on the Roof.
Snap the blood splatter just above the ping-pong table.

A Turn of the Screw - Photograph "A Turn of the Screw"
Go to the bookshelf, get your camera out and take a photo of the book called "A Turn of the Screw". It's facing you.

Mapping the Island (Part 1) - Photograph Maps of the Island
After you turn the blacklights on, get a photo of the UV map which you can see on the blast door. Then access the computer and open Blast Door B, run into the living area and snap the UV map on the blast door in there.

Into the Hatch - Complete the Episode
Self-Explanatory.

Episode 5
Persephone - Discover All The Memories in Flashback 5
Go behind the left pillar and take a shot of Lisa's laptop, with her in the photo. Then examine the two items on her desk and the recorder on the desk to the left of the guard.

Dharma Ride - Photograph the Dharma Van
When you are in the dark territory, from the start run all the way forwards. Try anf stay towards the left, following slowly around to the right. Eventually you will see it just on your left. Get a photo of it.

Slave - Photograph the Skeleton
When you are in the Black Rock, just to the right of the dynamite is a skeleton. Take a photo of it.

Boom Boom - Open the Secret Door
After retrieving the dynamite, take it under the waterfall opposite the Swan Station and use it to blow open the door.

Behind the Wall - Complete the Episode.
Self-Explanatory.

Episode 6
Whatever It Takes - Discover All The Memories in Flashback 6
Take a photo of the guard and Lisa, with the gun visible. Examine the diary next to Lisa, the newspaper to the left of the guard and the guestbook on the counter.

Pearl Station - Photograph the Pearl Station Emblem
To find the Pearl Station, just after you pass through the sonic fence run down to the edge of the hill. Now turn around and walk back up by the treeline, looking down. The "pick up" message will appear. Warp to the Pearl Station and photograph the emblem on the wall.

Mapping The Island (Part 2) - Photograph maps of the island.
When you come out of the flame station to the upper area, just before you confront Beady Eyes, take a photo of the map on the table.

Showdown - Confront Beady Eyes
Head through the white door and then pull out your gun and shoot Beady Eyes.

Through the Flame - Complete the Episode
Self-Explanatory.

Episode 7
Hero's Hero - Save Jack and Kate
When you're back at the Black Rock and Jack and Kate are hostages, stand between Jack and the dynamite and shoot the dynamite.

The Way Home - Complete the Game
Self-Explanatory.

Hope that helped!