It looks like the EvE devs are just in a giving mood this holiday season. After handing out free ships to all (subscription) EvE players they've provided a handy scanning video to help use that free scanner attached to the Zephyr.
You can find the video at: http://www.youtube.com/watch?v=heYfTA00Idg
I plan to watch it once or twice as I am a bit rusty when it comes to scanning out WH signatures. It's been a while since my last major WH action but I'm hoping to explore the vast unknown again soon.