How do exclude posts in a certain category from date.php, need help…

Heya,
Can anyone tell me how you exclude posts in a certain category from the date.php file? My code is below. Thanks!

<?php get_header(); ?>

<div class="page">

<!-- BEGINNIG OF ROW-2 -->
<!-- BEGINNIG OF ROW-2 -->
<!-- BEGINNIG OF ROW-2 -->
<div class="row-2">

	<div class="row-2-row-2">

	<!-- BEGINNING OF ROW-2-COL-1 -->
	<!-- BEGINNING OF ROW-2-COL-1 -->
	<div class="row-2-col-1">
		<?php get_sidebar(); ?>
	</div>

	<!-- BEGINNING OF ROW-2-COL-2 -->
	<!-- BEGINNING OF ROW-2-COL-2 -->
	<div class="row-2-col-2">

		<!-- BEGINNING OF ROW-2-COL-2-ROW-1 -->
		<div class="row-2-col-2-row-1"><?php if(function_exists('show_media_header')){ show_media_header(); } ?></div>

		<!-- BEGINNING OF ROW-2-COL-2-ROW-2 -->
		<div class="row-2-col-2-row-2">
		<?php
		if (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE 6.0') !== FALSE) {
			echo '<p>The browser you are using to view this website is <b><i>very</i></b> out of date. Please update your computer briefly by selecting "Start", then "All Programs", then "Windows Update" from the top of the list and following the on screen instructions.</p>';
		}
		?>

<table>
	<tr valign="top">
		<td style="width: 400px;">
			<h1>By Date</h1>
			<?php
			$posts_to_show = 100; //Max number of articles to display
			$debut = 0; //The first article to be displayed
			?>

			<?php while(have_posts()) : the_post(); ?>
				<h1><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h1>
				<p><small><?php the_time('M d, Y') ?></small></p>
				<p><?php the_content(); ?></p>

				<br />
				<br />
				<br />

			<?php endwhile; ?>
		</td>
	</tr>
</table>

		</div>

		<!-- BEGINNING OF ROW-2-COL-2-ROW-3 -->
		<div class="row-2-col-2-row-3"></div>
	</div>
	</div>

</div>

<!-- BEGINNIG OF ROW-3 -->
<!-- BEGINNIG OF ROW-3 -->
<!-- BEGINNIG OF ROW-3 -->
<div class="row-3"></div>

</div>
<?php get_footer(); ?>