Converting attachment_fu to Paperclip

I am making the transition from attachment_fu to paperclip on a very large project of mine. I wrote the following method, inside of my old attachment_fu model ItemImage to do the work. I wrote it to run from inside the rails console. It gives handy messages out letting you know what happened.

Reference: http://thewebfellas.com/blog/2008/11/2/goodbye-attachment_fu-hello-paperclip