Arthemia – Landscape image recised problem

Hi,
First of all, escuse me for creating so much topic.
I have another problem with Arthmia. The theme is great but too difficult to maintain.
When i post a landscape image, this one is recised at the display on the homepage with this code

<img src="<?php echo bloginfo('template_url'); ?>/scripts/timthumb.php?src=/<?php
$values = get_post_custom_values("Image"); echo $values[0]; ?>&w=150&h=150&zc=1&q=100"
alt="<?php the_title(); ?>" class="left" width="150px" height="150px"  />

The landscape image is cut on the left side.
When i increase the width, is makes it also on the other image, so the non-landscape one too…
Thanks