John,
I'm not sure if you were trying to access the videos from the mapping page or from the videos page, but I am not having any trouble getting them to play. Could you try these links for me and see if they give you a problem?

Mapping your Land - http://mylandplan.org/video/how-add-property
Adding Features to your Land - http://mylandplan.org/video/add-features-and-points-interest