I don't know if this is a result of the recent upgrade or something is.  I 
did a search for "network" from the webpage and among all the results I 
tried the first few and found that they were broken.  Here is a few of them:

http://archives2.real-time.com/tclug-list/Attic/All/msg02537.html
http://archives2.real-time.com/tclug-list/Attic/All/msg01309.html
http://archives2.real-time.com/tclug-list/Attic/All/msg02734.html

Now here are a few that work:
http://archives2.real-time.com/tclug-list/1999/Mar/msg00235.html
http://archives2.real-time.com/tclug-list/1999/Mar/msg00210.html
http://archives2.real-time.com/tclug-list/1999/Nov/msg00796.html

Just thought you would like to know

John