<?php 
$imageHelper = Loader::helper("image");
for ($i = 0; $i < count($cArray); $i++ ) {
    $cobj = $cArray[$i]; 
    $title = $cobj->getCollectionName(); ?>

<h3 class="ccm-page-list-title"><a href="<?php echo $nh->getLinkToCollection($cobj)?>"><?php echo $title?></a></h3>
<?php 
$thumbnail = $cobj->getAttribute('thumbnail');
if ($thumbnail) {
   $thumbnailObj = $imageHelper->getThumbnail($thumbnail,200,200);
   echo '<div class="ccm-page-list-thumbnail">'; 
   echo "<img src=\"{$thumbnailObj->src}\" alt=\"\" width=\"{$thumbnailObj->width}\" height=\"{$thumbnailObj->height}\"/>";
   echo '</div>';
} ?>
<div class...