custom sidebar not working properly

I am trying to create multiple custom sidebars, and I’ve gotten them created. and Some info is displaying but when I try and add something such as :

<?php get_posts('numberposts=10'); ?>

It doesn’t seem to work.

This is my index.php file:

<?php get_header(); ?>

	</div>

	<?php include ('sidebar-main.php'); ?>

	<?php include (TEMPLATEPATH . '/sidebar.php'); ?>

		<div id="box">

		<?php if(have_posts()) : ?><?php while(have_posts()) : the_post(); ?>

				<div class="post">

				<h1><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h1>

				<div class="entry">

				<?php the_content(); ?>

				<p class="postmetadata">
				<?php _e('Filed under:'); ?> <?php the_category(', ') ?> <?php _e('by'); ?> <?php  the_author(); ?><br />
				<?php comments_popup_link('No Comments »', '1 Comment »', '% Comments »'); ?> <?php edit_post_link('Edit', ' | ', ''); ?>
								</p>

				</div>

				</div>

		<?php endwhile; ?>
		<div class="navigation">
		<?php posts_nav_link(); ?>

		</div>

		<?php endif; ?>
		</div>

<?php get_footer(); ?>	

</body>

</html>

and the sidebar in question:

<div class="sidebar-main">

		<h2>Navigate</h2>
		<ul>
		<li><a <?php if (is_home()) echo('class="current" '); ?>href="<?php bloginfo('url'); ?>">home</a></li>
		<li><a <?php if (is_page('about')) echo('class="current" '); ?>href="<?php bloginfo('url'); ?>/blog/about/">about</a></li>
		<li><a class="smcf-link" <?php if (is_page('archives')) echo('class="current" '); ?>href="<?php bloginfo('url'); ?>/blog/archive/">archives</a></li>
		</ul>

		<h2>connect</h2>
		<ul>
		<li><a href="#">twitter</a></li>
		<li><a href="#">facebook</a></li>
		<li><a href="#">youtube</a></li>
		<li><a href="#">delicous</a></li>
		</ul>

		<h2>recent</h2>
		<?php get_posts('numberposts=10'); ?>

	</div>

The site is at https://sketchcraft.com/

Any help is greatly appreciated.
Thanks