With regards to the name of the point, I don't know if there is a proper name for it. It's the center of the entrance pupil though. Even the page I just linked doesn't give it a proper name and has a note about ignoring or not getting hung up on terminology as long as you're finding the right point.

The Metadata on the image says it was saved with Photoshop CS3, shot with a Canon 1Ds @17mm, 1/[email protected] by Jacqueline McBride.

It's funny, but all the text I can find accompanying the photo on the net keeps talking about the significance of the subject matter rather than the creative/technical process that went into taking the picture.