The instructions are in a PDF file, download it from here. There is also a compressend file that you will need to download before you can start. It contains all the datafile and instructions.
migratetutorial_columbus.zip (You will need to download the program from here: Migrate website new versions (if you have a mac choose the newest version of you use windows please try to use version 4.2.7, for unix use the newest src distribution and unpack and configure/make on your system.)