[Plugin: PHP Code Widget] No code and text shown

I installed, activated and added text and code to the PHP Code Widget, and some other similar widgets, but none of them wants to display the code on my blog, why? What’s wrong?

The code for sidebar.phs is;

<div id="right">
<?php if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar("Sidebar") ) : ?>

				<div class="sidemenu">
					<h3>Categories</h3>
					<ul>
						<?php wp_list_categories('title_li=&depth=1'); ?>
					</ul>
				</div>

				<div class="sidemenu">
					<h3>Akriv</h3>
					<ul>
						<?php wp_get_archives(); ?>
					</ul>
				</div>

<?php wp_list_bookmarks('title_before=<h3>&title_after=</h3>&category_before=<div class="sidemenu">&category_after=</div>'); ?>

<h3>Sök</h3>
<?php get_search_form(); ?>

<?php endif; ?>				

			</div>