I have some problems with ads.
If i put the ads in the feed, the player can't play anything.
The only way to make it work, was to set it up in player.js with the following code:
ad = { video: { link: "http://somevideoad.flv"}, backlink: ""};

Now the ad is played before the video, but when the ad ends and the video starts, after 2 seconds, the last frame of the ad shows up above the video and stays there...
I have to forward and backward the movie to be able to watch the video.