qTranslate shows default url in related posts

I’m using qTranslate plugin, default language is Turkish, and other language is English. For example, Turkish site is in http://example.com and English side is in http://en.example.com. Everything is ok with qTranslate, but in Related Post i have a weird problem.

My Related Posts code is as you see;

<!-- Related Posts-->
<?php
$backup = $post;
$tags = wp_get_post_tags($post->ID);
if ($tags) {
$tag_ids = array();
foreach($tags as $individual_tag) $tag_ids[] = $individual_tag->term_id;

$args=array(
'tag__in' => $tag_ids,
'post__not_in' => array($post->ID),
'showposts'=>4, // Number of related posts that will be shown.
'caller_get_posts'=>1
);

$my_query = new wp_query($args);
if( $my_query->have_posts() ) {
//echo '<h2>Benzer Yazılar</h2><ul class="relatedPosts">';
_e('[:tr]<h2>Benzer Yazılar</h2><ul class="relatedPosts">[:en]<h2>Related Posts</h2><ul class="relatedPosts">');
while ($my_query->have_posts()) {

$my_query->the_post();

?>
<li><?php the_post_thumbnail(array(40,40)); ?><a href="<?php the_permalink(); ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></li>
<?php
}
echo '</ul>';
}
}
$post = $backup;
wp_reset_query();
?>
<!-- end Related Posts-->

With this code, if you in English side, All related posts’ URL starts en.example.com/xyz, but some articles in Turkish language which must be start with example.com/xyz. In reverse, when you are in Turkish side, All related posts shows url in Turkish url format so http://example.com/xyz, but some related post’s url is english.

How can i handle this problem.