Grab images with php from an rss feed

PHP

$rss = new DOMDocument();$rss->load('http://www.autoexpress.co.uk/feeds/all');$feed = array();foreach ($rss->getElementsByTagName('item') as $node) {  $item = array ('title' => $node->getElementsByTagName('title')->item(0)->nodeValue,'desc' => $node->getElementsByTagName('description')->item(0)->nodeValue,'link' => $node->getElementsByTagName('link')->item(0)->nodeValue,'date' => $node->getElementsByTagName('pubDate')->item(0)->nodeValue,'image' => $node->getElementsByTagName('whattagdoiaddhere')->item(0)->nodeValue,  );  array_push($feed, $item);}$limit = 3;for($x=0;$x<$limit;$x++) {  $title = str_replace('& ', '&amp; ', $feed[$x]['title']);  $link = $feed[$x]['link'];  $description = $feed[$x]['desc'];  $date = date('l F d, Y', strtotime($feed[$x]['date']));  echo '<div class="news-row-index">';  echo '<div class="img"><a href="'.$link.'" target="_blank" title="'.$title.'"><img src="'.$image.'" height="79" width="89"></a></div>';  echo '<div class="details-index"><p><h5><a href="'.$link.'" target="_blank" title="'.$title.'">'.$title.'</a></h5><br />';  echo '<small><em>Posted on '.$date.'</em></small></p>';  echo '<p>'.$description.'</p></div>';  echo '</div>';}

1. I am trying to get the images from this rss but don't know exactly how to get the image and add it into the <div class="img".
2. Also i have a problem because the image is being received but it's located in the $description variable.
3. Tried searching and found php rss feed show images but when i add the code from that answer I get nothing in the rss module.Please help me I really appreciate it.