The teleporters that you can pick up are in fact located in the NW area, but you will not find them laying on the ground. Look around that area and check any chests that you come across.
You could have gotten a summoning doll in act I and act II so far in your game. The one in act I is for completing a quest, the one in Act II is from killing a monster. In act III you will be given one.
Then placing a charm on a piece of equipment make sure that you move the charm window off to the side of the inventory window and it will not disappear. When the charm window is on top of the inventory window it seems that the game thinks you are just trying to drop the charm back in your inventory.
Make sure that you install the new patch (v1.41) and don't get discouraged. Most of the major problems should have been cleared up after you install the patch.
