Need Script, Or Any Solution For Website Design Task!

create a user management system:--

Functions :
1.visitors should be able to register
2. You must make sure they enter atleast 5 characters long for username and password.
3. you should creat a login page.
4. you should create a secure page were visitor can only see the page content if logged in.
5. create a log out page.
6. user should be able to update there information.


do that and lets see ... ur progress will be looked upon.
specify a link to ur test page