How to create post thumbnail
<p>I am working on the WordPress Twenty Ten theme, and I want to display post thumbnails.  I have followed the steps below:</p>

<ul>
<li><p>Added following code in functions.php file:</p>

<pre><code>if ( function_exists( 'add_theme_support' ) ) { 
    add_theme_support( 'post-thumbnails' ); 
}
</code></pre></li>
<li><p>I have also defined post thumbnail size,</p>

<pre><code>set_post_thumbnail_size( 150, 150 );
</code></pre></li>
<li><p>And I configured the media settings from the admin panel of WordPress to not to crop image. but this is cropping the image.</p></li>
<li><p>Using this in loop.php file,</p>

<pre><code>the_post_thumbnail(array(150,150);
</code></pre></li>
</ul>

<p>I do not want to crop the image. How can I do this? Please help where I am wrong in my process.</p>

<p>Thanks in advance.</p>
