Image not showing

i use this

<?php
$my_query = new WP_Query(‘showposts=’.$slide_count.’&category_name=commitments’);
while ($my_query->have_posts()) : $my_query->the_post();
$do_not_duplicate = $post->ID;
$thumb = get_post_meta($post->ID, ‘thumb-small’, true);
?>
• <img src=”<?php echo $thumb; ?>” alt=”<?php the_title() ?>” /> <?php the_title() ?>

<?php endwhile; ?><?php echo $thumb; ?>

its showing properly at blog page but when i use this in widget area, image not showing. anybody help me pls?