Drupal Themes Only

I've been drooling for this book from www dot packtpub dot com/article/drupal%27s-theme-layer.

Drupal CMS or Vbulletin ? Which do you think is the best for me to use ?

For some reasons, I want to disable my breadcrumbs. I don't know how to do it. Any help would be great appreciated. Thanks!

I'm having hard time with the comment settings. I want to disable comments for specific content type. Is this possible?