Show latest article thumbnail from one category?

I want to show a list of new articles from one category but only have one thumbnail show from the most recent article in that list, can anyone help?

This is the code I have so far, div id="p" is where I need the thumbnail.

<div id="rapsbox">
<div id="lfttxt"><div id="t-t"></div><div id="p"></div><div id="rapboxtxt">
<?php $args = array( 'numberposts' => 9, 'category' => 7);
	$lastposts = get_posts( $args );
	foreach($lastposts as $post) : setup_postdata($post); ?>
<div id="txtinr-rr"><a href="<?php the_permalink() ?>" class="blue" title="<?php the_title(); ?>" rel="bookmark"><?php the_title(); ?></a></div><?php endforeach; ?>

</div></div>

Code (markup):

 

why don't you use this plugin wordpress.org/extend/plugins/advanced-recent-posts-widget it will do what you are looking for

 

Plugins tend to be bulky and with the complex layout I have planned it won't work.

 

if you give url or screen shot, then only we can help you out.

 

Why do you need a screen shot?