[Plugin: Taxonomy Images BETA] taxonomy_images_plugin->get_image_html problem

Hello
I’m experiencing a strange behavior here.
when I run the obvious code you have on your website
$img = $taxonomy_images_plugin->get_image_html( 'detail',4242 );
then the image is not shown…(cats have images attached)
(However it works for some older categories with lover id, such as 13, 5, etc.,pretty strange)

But when I do
do_action( 'taxonomy_image_plugin_print_image_html', 'thumbnail' ); for that category ‘4242’ (category.php)
it gives me the image.

here is my actual code

if(is_category('4242')){
	echo '<div id="profile">';
		echo '<div class="profile_text">';
		_e ($virtual_cat_descr);
		echo'</div>';
		echo '<span class="profile_picture">';
	    		//$img1 = $taxonomy_images_plugin->get_image_html( 'detail',4242 );
			//echo $img1;
			do_action( 'taxonomy_image_plugin_print_image_html', 'thumbnail' );
		echo '</span>';
	echo '</div>';
	$termID = 4243;
	$taxonomyName = "category";
	$termchildren = get_term_children( $termID, $taxonomyName );

	foreach ($termchildren as $child) {
		$url = get_category_link($child);
		//$thisCategory = get_category();
		echo $url;
		$img = $taxonomy_images_plugin->get_image_html( 'detail',4243 );
		echo $img;
	}
}

http://wordpress.org/extend/plugins/taxonomy-images/