how do i add an image to trace with?

Hello, im trying to follow this tutorial(http://www.tutorialized.com/view/tutorial/Model-a-Wine-Glass-in-Blender/32403 ) but i dont know how to add the image and trace it. How do i add the image?

-thanks

To add a background image, go to the 3D View Header (likely at the bottom of the 3D view), go to View menu, and then Background image. From there it should be pretty self-explanatory (click the load image, select it, and it should show up).

The tutorial seems to cover tracing, but basically, add a plane, delete its vertices and then either with extrude (e key) or by pressing ctrl-left mouse add vertices in the shape of your glass.

go to the view menu then elect the background image
and load up the image in the new menu

Salutations

cheers guys, thanks i got it:)