Lock the Anchor When the Graphic is in Place
The Problem:
My object anchors are moving as I edit the text of my document. How can I get the anchors to stay where I cast them, even if I need to move the objects?
The Solution:
Choose Format 
Picture, click the Layout tab, and click the Advanced button. Check the "Lock anchor" box on the Picture Position tab to make the anchor stay in place. Uncheck the "Move object with text" box if you want to prevent the object from moving when you move the text to which the anchor is attached.