Front end alignment

I have been putting together some info on how to check and adjust the alignment of the front wheels.  I think my wagon has a real problem with the alignment because of the tire wear.  So right now I plan to use some of the things that I have found on the web.
Here is a video http://www.youtube.com/watch?v=W8qFjAB67vk

And some pictures

What do you think, will it work?????