Displaying news (or what ever) in a second sidebar?

I read the https://codex.www.ads-software.com/The_Loop file. It says that “If the post is in the category we want to exclude, we simply pass to the next post.”

<?php if (in_category('3')) continue; ?>

So I’m trying to exclude the Posts in the “NEWS” gategory from displaying in the main “entry” div, and to display in the second sidebar.

The_Loop file also says that “Get the last 10 posts in the special_cat category.” Like this:

<?php query_posts('category_name=special_cat&showposts=10'); ?>

I try to put that in my second sidebar, but I cant do any of this.

My index.php looks like this.

<div id="content" class="narrowcolumn">

	<?php if (have_posts()) : ?>

		<?php while (have_posts()) : the_post(); ?>
		<?php if (in_category('NEWS')) continue; ?>
			<div class="post">
				<h3 id="post-<?php the_ID(); ?>"><?php the_title(); ?> <cat><?php the_category(', ') ?></cat></h3>
				<div style='border-bottom:1px #aaa solid;width:100%;'>

				<div class="entry">
					<?php the_content('More &darr;'); ?>
				</div>

			</div>

		<?php endwhile; ?>

So how to include and exclude categories?

Thanks