WPQuery List posts under one category alphabetically

I created a page template for a list of all posts under a specific category and I am using a code snippet I found on the web which uses $wp_query to list posts. I want to edit the code to list posts under one category and list them alphabetically(in this case the category is called “Anime Reviews” and it’s category number is “3”:wink:. Unfortunately my knowledge of php is non-existent so I need help with the code to do this.

Here is what I have so far…

<!-- To issue queries I need to hijack $wp_query. So, I can use it later
on the page I'm saving it to a temporary variable -->
<?php
$tempWPQuery = $wp_query;
$wp_query = null;

// Create a new WP_Query Object
$wp_query = new WP_Query();

// Issue a query that returns all posts
$wp_query->query('posts_per_page=-1');

// Cycle through all of the posts
while ($wp_query->have_posts()):
$wp_query->the_post();
?>

<div class="listpost">

<h2><a href="<?php the_permalink(); ?>">
<?php the_title(); ?>
</a></h2>

</div> <!-- End of listpost -->

<?php
endwhile;

// Reset wp_query to the default
$wp_query = null;
$wp_query = $tempWPQuery;
?>

Please help :expressionless: