Post installation

I want to create a forum topic that will always remain at the top of the list or one that users cannot add to, as a sort of guidance topic.

How can I achieve this?

What is the title module?

As in the title

How can I add htmlArea to the profile module?

I have also forgotten the source of the original download?

Can anyone help

I have just installed Drupal but because I it is a school website being opened up to all my classmates but I don't want it register them to Drupal.

It has fairly liberal access rights but I would like to leave out the Drupal registration bit until I can get the time to study Drupal properly, to avoid any antisocial hacking.

Where can I fix that option?

I have just installed Drupal but because I it is a school website being opened up to all my classmates but I don't want it register them to Drupal.

It has fairly liberal access rights but I would like to leave out the Drupal registration bit until I can get the time to study Drupal properly, to avoid any antisocial hacking.

Where can I fix that option?