app\code\core\Mage\Sitemap\Model\sitemap.php

 

 /**
         * Generate cms pages sitemap
 */
$url=$item->getUrl();
 if($url=='home')$url='';

 

 

/app/code/core/Mage/Adminhtml/etc/config.xml

Replace (at around line 190)

<any_path>/*/sitemap.xml</any_path>
with

 

 

<!-- <any_path>/*/sitemap.xml</any_path> -->

 

 clear cache .