I had a lot of trouble uploading videos to the blog. They would play in the preview mode when I was in the "dashboard" view of my blog, but there would be a blank area with a little white box with as red x in it.
I deleted the post (actually updating this on Sunday, April 20, 2008), and then I uploaded a small video I had created using PhotoStory3. This one uploaded and played in the blog itself.
I still want to have the blog by M. Wensch be able to play here instead.