Customizing the sidebar widget

Hello,

I have upgraded to the new version which is widget-ready. I also browse through http://automattic.com/code/widgets/themes/ to widgetized my theme. However it still doesn’t work:

I am using markup

<h2></h2>
<ul><li></li>
</ul>

I changed my widgets.php to this:

'before_widget' => '<ul id="%1$s" class="widget %2$s">',
		'after_widget' => "</ul>\n",
		'before_title' => '<h2 class="widgettitle">',
		'after_title' => "</h2>\n",

I also include class=”widgettitle” in all my h2 tags and id tag to all my ul tags

I also put this code in my sidebar page:

<?php if ( !function_exists('dynamic_sidebar')
        || !dynamic_sidebar() ) : ?>

But it still doesn’t work, still see this from widgets page:

You are seeing this message because the theme you are currently using isn’t widget-aware, meaning that it has no sidebars that you are able to change. For information on making your theme widget-aware, please follow these instructions.

What am I doing wrong?

I hope to hear help from wordpress guru out there.. thanks a lot…