Uru: Ages Beyond Myst Cheats (PC)

Do you want to get the last 'magical' hand? close the door in the room 
  where you met yeesha....go into the next room and open that door in 
  there...go out and then go around to the door you closed...

  

Hand Find

In the lava age one hand can be found by falling down the side nearest 
to wear you enter, there is a ledge where you can fall and press the 
hand. You can see this ledge from the other side of the lava pit.
  
Hidden
Panel

  In the dessert level (the first level) the last panel is on the back 
  of the truck. once you click it you will have to get the others if you 
  haven't already