Camera movement? Maybe vCam?

Hi!
Im making a 2D platformer game. And I need the camera to move. And I don’t want the player to be centered, I want it to be like this: http://img43.imageshack.us/i/cameraa.png/

Explain:
I want to see everything, but I want the camera to move when player hits the red line.
Like this:

Now, I dont know if I should use vCam or what? Im new to flash and I red that vCam is good? Can I do this with vCam?
You see that the player can move without the camera follow, but when he’s coming towards the center the camera starts to move.