Well if you know HTML, and you can identify PHP bits and HTML bits, then it's simple.
1) create a blank php file, call it functions.php and save it in your theme directory.
Fill it with
<?php
function postimage($size=medium) {
if ( $images = get_children(array(
'post_parent' => get_the_ID(),
'post_type' => 'attachment',
'numberposts' => 1,
'post_mime_type' => 'image',)))
{
foreach( $images as $image ) {
$attachmenturl=wp_get_attachment_url($image->ID);
$attachmentimage=wp_get_attachment_image( $image->ID, $size );
echo '<a href="'.$attachmenturl.'" rel="lightbox">'.$attachmentimage.'</a>';
}
} else {
echo "No Image";
}
}
?>
Then open up the file, where you wish to have the list of your posts.
Depends on where you want it ... if it is the default view, it'll be in the index.php, of you want to leave the normal layout as it is and only have the category view like on the wrestling page, work in the category.php file.
You need to tell us more about what you wish to do, or show us by posting a link to your site.
Anyhow, wherever you want the list of posts to show up, you'll find something like this:
<?php if (have_posts()) : ?>
<?php while (have_posts()) : the_post(); ?>
<div class="post" id="post-<?php the_ID(); ?>">
<div class="entry">
<?php the_title('<h1>» ', '</h1>'); ?>
<?php the_content('Read more »'); ?>
</div>
<p class="postmetadata"><?php edit_post_link('Edit','',''); ?>
</div>
<?php endwhile; ?>
In a normal HTML editor, you'll see the difference between the php and html stuff.
What this bit does is check if there are posts to be found, then display it in it's own div.
Change the stuff above to the following:
<?php if (have_posts()) : ?>
<?php while (have_posts()) : the_post(); ?>
<div class="post" id="post-<?php the_ID(); ?>">
<div class="entry">
<?php postimage('thumbnail') ?>
<?php the_title('<h1>» ', '</h1>'); ?>
<?php the_excerpt('Read more »'); ?>
</div>
<p class="postmetadata"><?php edit_post_link('Edit','',''); ?>
</div>
<?php endwhile; ?>
We added the postimage(thumbnail) part. This will output the post thumbnail. Obviously, use your HTML / CSS skillz to format as you see fit ... like using a span align left to make it float on the left, or whatever.
Easy ;)