I ordered the video through disneyworld.com, then click onto the 100 years celebration logo. You will see in the left side column "Order video". They also usually advertise the free vacation planning videos on tv giving you a toll free # to call. They have 2 versions of it - one for families and one for adults.
I have both Birnbaum's guide and the Passporter for last year. They both have some great info in them. You can see what the Passporter is like by visiting their website at passporter.com.
Colleen