I did not receive all of the study materials for my unit, how do I get these resent?

Go to the following web page located on the Celts web site http://www.celts.monash.edu.au/students/current/disp/index.html

1. What is the difference between the ITS CD and the GSCIT Resource CD?
2. Why do I get an "Authentication Failed" message when I try to access my GSCIT unit page?
3. I did not receive all of the study materials for my unit, how do I get these resent?
4. When I attempt to post to the newsgroup I get the following error. "Your article has NOT been posted to classes.it.gscit.gco9800.2004-sem2.notices." How can I resolve this so I can post to the newsgroup?
5. The message "Outlook Express was unable to retrieve all the headers from newsgroup 'classes.it.gscit.gco.....'" appeared when I tried to access the newsgroupd for my subject. How do I fix this?
6. What is the difference between my AuthCate and Novell accounts?