On sims 2 castaway on psp how do you get behind the ancient door?

Do you mean the ancient door at Geyser Plains? or the locked door in the Dark Cave? For the one at Geyser Plains... 1. find all of the heiroglyphic pieces: Deep Jungle - close to the path

Shipwreck Lagoon - on the shipwreck

Pier Beach - by the pier

Dark Cave - by the locked door

Skull Rock Jungle - by the skull rock

South River Jungle - near the beach behind a boulder

East River Plains - near a pillar by the quicksand "river"

Volcano Jungle - on the raised ground along from the top hot spring

Geyser Plains - to the far side of the ancient door (I got the above locations from yahoo.com/question/index?qid=20080101023446AAH1TX5">http://au.answers.yahoo.com/question/index?qid=20080101023446AAH1TX5 ) 2. using a crafting bench, make an "ancient stele" using the heiroglyphic pieces. This plan can be found under "Leisure Plans" in "Plans and Ideas". 3. walk up to the ancient door and examine it. Your sim should take out the ancient stele and place it in the slot in the door. Then the door will open and you will be able to access the Llama Temple. For the locked door in the Dark Cave: 1. open the ancient door in Geyser PLains on the third Island 2. go to the Temple Interior and look behind the rock 'thrones' 3. pick up the Llama crown lyin on the ground 4. wear it by changing your sims hairstyle so that it shows the crown on his head. To do this, go to "Fashion and Grooming" on the main menu. 5. go to the locked door in the Dark Cave and examine it. Your sim should bend over and unlock the door with the crown. You will have unlocked the entrance to the Hidden Lagoon.