PHPBB3: Category Problem.

I want to change my forum to PHPbb3 but the category's don't show up, just forums. I would like the Categorys to show up and not be connected to other category's but to have a space between them. In PHPBB2 category's show up with forums and are not connected to other category's. In PHPbb3 Category's don't show up and all the forums are connected (touch each other). Any Help?

Try this: Go to admin panel=>general=>Homepage=>Hierarchy. Look for this option "Split categories on index :" and choose full.