teleporting players

Help!!!
I have created a map and an important aspect of it is that I want to teleport players when they reach a certain point.
I have set up a trigger area and a teleport marker. The event says when Blue Team enter trigger area teleport blue team to TT1. Both the area trigger and teleport target are assigned to Blue players.
Does anyone know why this does not work or even if it is possible to teleport players?

it will work, attach the .mis file if you want me too look at it.

the event should read:
Event 0: tport blue

Trigger:
Group 1 is within area 1
Actions:
Teleport group 1 to target 1

if this is a multiplayer map, all blue team players will teleport when this event is triggered