$productLoaded->setMediaGallery(array('images' => array(), 'values' => array()));
$origImage = trim($xml->Item[$i]->$name);
$productOrigImagePath = Mage::getBaseDir('media').DS.'import'.$origImage;

if(file_exists($productOrigImagePath)){
    $productLoaded->addImageToMediaGallery ($productOrigImagePath, array('image'), false, false);
}