1: Select the object you want to move the pivot point of. Hit Insert, (over there above your arrow keys) and you can now move your pivot point. Hit insert again to go back to normal mode.

2. Open your channel box. This is the button wih white lines and a blue and red box, under your close application 'x' button. Select your vertexs. Look in your channel box for CVs (Click to show) click it, not move your vertex to about the place you want them, then look in your channel box, and put them where you want them. (So lets say you move them to -0.467, chnage that to -0.5)