Are you trying to get them from the House collection? If so, stop!
DitriS has just ripped all four episodes. They should have sources, because I've just finished downloading part four.
House 1:
http://forum.dead-donkey.com/viewtopic.php?f=5&t=17384House 2:
http://forum.dead-donkey.com/viewtopic.php?f=6&t=17286House 3:
http://forum.dead-donkey.com/viewtopic.php?f=5&t=17293House 4:
http://forum.dead-donkey.com/viewtopic.php?f=5&t=17322