[color=red][b]You don't have to have an iPod to watch a video podcast![/b][/color]
Once you have downloaded the SadCAST mp4 file, you can play it using your iTunes client or - more likely one of the many media players.
Or, you may prefer to use the simplest method, VLC media Player. It plays just about anything and can be downloaded HERE:
http://www.videolan.org/vlc/ [1]
If you prefer to use a player like Windows Media Player, you may have a problem if you don't have an MP4 codec installed. You can download 3ivx HERE:
http://www.free-codecs.com/3ivx_download.htm [2]
Hope that helps. If not, just reply here.
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Links:
[1] http://www.videolan.org/vlc/
[2] http://www.free-codecs.com/3ivx_download.htm