Hi, I just finished installing my WP installation, added your plugin, created a new post, uploaded a video (flv) and a thumbnail (png), saved. Then I went on the front end, displayed the new post, clicked on play and I get a "File not found". If I enter the *exact* url in the browser address bar, the file gets downloaded fine, but yet the video player says it can't find it.
BTW: I did copy the crossdomain.xml file in the root of the WP installation.
I tried, the, to upload a mpeg version of the same video, and yet the same "File not found" error. I'm not sure what I need to provide for you to debug.