Pulling images from posts

Greetings all…..

I’d like a bit of advice from you lovely people, if I may. I’m trying to pull the images from each individual post, display them as a thumbnail, and use that thumbnail as a link to the post the image was pulled from. I’ve had a look at this thread http://wordpress.org/support/topic/140609?replies=48 and that’s been useful, but it’s marked as resolved, hence this new thread.

Here’s the code I’m using

<?php if ( $images = get_children(array(
		'post_parent' => get_the_ID(),
		'post_type' => 'attachment',
		'post_mime_type' => 'image',
	))) : ?>
	<ul class="post_list">
		<?php foreach( $images as $image ) :  ?>
			<li><?php echo wp_get_attachment_link($image->ID); ?></li>
		<?php endforeach; ?>
	</ul>
<?php else: // No images ?>
	<!-- This post has no attached images -->
<?php endif; ?>

All well and good. It pulls the images from the posts, and they become links to the image itself. Being a bit of PHP n00b, what I don’t get is:
a)what is creating the link to the image
b)how can I make that link a link to the post instead of to the image.
Is that possible to do?
Am I asking too much of WordPress?

Hope someone can give me some advice to save my skull caving in from hitting it against the wall.

Cheers

🙂