ChannelUserList issue

Hi,

I have an issue with the channeluserlist service.
I registered my NickName (Joost_en_Femke), registered a channel (#Labjes).
Then I went to  
http://www.blitzed.org/scripts/chanuserlist/register.phtml and signed up 
for the service.

The url I use for the channeluserlist is 
http://blitzed.org/scripts/chanuserlist/?channel=%23Labjes&pass=Labrador

It always retrieves an empty file. If I change the password I get an 
"no_auth" message so I assume the user/pass combination is correct.

The channel has Private mode on, but even if I turn it off it still 
retrieves an empty list.

Do you have any idea what I might do wrong?

Thanks alot for your help!

Joost