Hi,
only last link of "chupa" is working at the moment (see browser) and its also working to pipe it with the right -K parameter.
Code:
rtmpdump -v -r "rtmp://37.48.118.20/stream/chupa?id=9463" -W "http://www.liveflashplayer.net/resources/scripts/fplayer.swf" -p "http://www.liveflashplayer.net/" -C S:OK -K "kaskatijaEkonomista;TRUE;TRUE" | "Player" -
The other two links seems to be down.
greetz