Category page isn't working

I’m looking at the hierarchy and the 2010 theme files but I can’t figure out what I’m missing. When you click on a category, I want to show posts from that category.

With Category templates, I can’t do dynamic category’s right? If a user creates category ‘superman’, I would need a category-superman.php which the site wouldnt have.

I’m looking for a way to do something like this, but without needing to create pages.
<?php query_posts('category_name='.get_the_title().'&post_status=publish,future');?>

I would like ‘category_name=’whatevercategorytheyclickedon’, is there a way to do that?