home.php de ve header.php
<td width="191" rowspan="3" align="left" valign="top"><a href="<?php echo get_option('home'); ?>/"><img class="main-logo" src="<?php echo get_option('home'); ?>/wp-content/themes/Tauren/img/spacer.gif" alt="<?php bloginfo('name');?>" width="361" height="84" border="0" /></a></td>

width="361" height="84"
bu kodu deneyerek degistirebilir misiniz