What you need: Polariser, Hypershot, PS2.
Go to metallis and get out the polariser. Use it on the big, dented cirle and you will see a polariser target. you will ave to go on a track that wont take long. At the end, Hypershot over the gap and go through the teleporter. Take the disk out of the PS2 and reset it.Go into the thing under browser and it time and date. change the time to 2:42 and put the disk back in. Load the game and you will see a teleporter when you get out of your ship. Go through it and you will see a lot of boxes. smash them and you will see a teleporter that wasn't the one you came through. Go trough it and you will be going to The Treehouse.