Hey you two! Not sure if you're aware of a fabulous tool that SU sells. I'm a fairly new stamper too and was never able to get my stamped images to line up exactly the way I wanted them to.
I then discovered the stampamajig that is sold on page 224. It works great! It allows you to stamp your image on an imaging sheet (while using the stamp positioner). You then place the imaging sheet where you want the actual stamped image to be. You place the positioner on the imaging sheet (the catalog gives a good example), remove the imaging sheet and then you stamp your actual image. Perfect placement every time! The stampamajig comes with much better instructions than what I typed.
Linda