Add Banner to SideBar. Can someone help?

I’m trying to add an image to my sidebar. It is an affiliate image. I have done searches but there hasn’t been a fix that works for me. Can someone please help? It is an affiliate link, but I replaced all the unecessary stuff with garbage.

Here’s what the link look like:

<A HREF=”http://refer.blablaaa.com/cgi-bin/clicks.xxxxxxxx=XXXXXX&BAN=0″&gt; <IMG SRC=”http://yourdomain.com/seancody0088.gif&#8221; BORDER=0></A>

This is my sidebar.php template if that helps:

<!– begin sidebar –>
<div id=”sidebar”>

<?php if (function_exists(‘wp_theme_switcher’)) { ?>
<div id=”themes”>
<h3><?php _e(‘Themes’); ?></h3>
<?php wp_theme_switcher(); ?>
</div>
<?php } ?>

<div id=”categories”>
<h3><?php _e(‘Categories:’); ?></h3>

<?php wp_list_cats(‘sort_column=name&optioncount=1&feed=rss’); ?>

</div>

<div id=”archives”>
<h3><?php _e(‘Archives:’); ?></h3>

<?php wp_get_archives(‘type=monthly&show_post_count=1’); ?>

</div>

<div id=”blogroll”>
<h3>Blogroll</h3>

<?php get_links(-1, ‘
• ‘, ‘

‘, ‘ – ‘); ?>

</div>

<div id=”meta”>
<h3><?php _e(‘Meta:’); ?></h3>

<?php wp_register(); ?>
• <?php wp_loginout(); ?>
• XFN
• “>WP

<?php wp_meta(); ?>

</div>

</div>

<div class=”both”></div>

</div>

<!– end sidebar –>