rubytorrent devel - Nov 2005 - Problems when connecting to a tracker that requires a passkey

I''m trying to download a torrent from a site that requires
authentication,
but the tracker refuses the connection.

This is the error in the log: (With a slightly obfuscated passkey)
--------------
trying tracker
http://www.moviehouse.nl/announce.php?passkey=a60240a26d4018******************
warning: couldn''t connect to tracker, next try in 10 seconds
connecting to
http://www.moviehouse.nl/announce.php?uploaded=0&port=50011&downloaded=0&compact=1&numwant=50&event=started&left=0&info_hash=%F8%B00%8B%ECU%AADM%D5%16%A56Bq%AF%3CDQ%5E&peer_id=rubytor%00q%D17%F5%B8%BF%EC%F5r%1C%B9C
...
= dl rate 0 < 1024, in antisnub mode
= num pieces 0 < 2, in fuseki mode
* calculating optimistic unchokes...
* anti-snubbing mode, 0 extra optimistic unchoke slots
couldn''t connect: tracker reports error: Invalid peer_id (21 -
rubytor%5C0q%D17%F5%B8%BF%EC%F5r%1C%B9C)
trying tracker
http://www.moviehouse.nl/announce.php?passkey=a60240a26d4018******************
warning: couldn''t connect to tracker, next try in 20 seconds
----------------

I assume this is some problem with the passkey, but my knowledge of the
bittorrent protocol is not sufficient to be sure.

Do you have any solutions?

Greetings,
Bas Kloet