Content Not Showing on another page

Hi,
I am using Drupal 5.7. I am creating a education based website. I am using category module to create category and container. and this category showing on create content/page.
Example : 1) I created category "Course".then
2) i added some containers,sub-containers "Computer" -> "Short Term" -> "C++" -> "What is C++" and then I uploaded a course detail page in "What is C++" with the help of "Create Content/Page".
As i have described that container is showing in "Create Content/Page" .

Q1 - So How is possible that a anonymous user can see details till "what is C++" but he can't see the course content detail in "what is C++" which have uploaded by "Create Content/Page" and then login form will be show on screen.

Q2 - I have designed user registration form with the help of CCK module. like First Name, Last Name in "Personal Information". In My Account,when we hit on edit tab then a form show on screen with some detail and some tab appear like "Personal Information" and etc. so i want to create a tab "Subject" which will be show in "My Account" in each user account and only admin can see this tab and that "Course" category will also be placed in this tab. and then i can allow user to read that particular container or page for a particular time and after time expire, user will be logged off permanently automatically and information will be send to admin account,either he active that account or not. and user can't see any pages except this. how its possible? if its not possible then what is the solution?

Q3 - A Particular node or particular container (not all) should be expire within a given time(which is set by admin) ?

Sorry for my humble english.
Thanks