I am using Nextgen gallery to display some images on my website. I would like to use "Alt & Title Text" as display for captions under each thumbnail

I used the shortcode [nggallery id=2 template=caption] to call a gallery from a page.

From reading various posts, I have also edited the gallery-caption.php with this code:

<!-- Thumbnails -->
<?php foreach ( $images as $image ) : ?>

<div id="ngg-image-<?php echo $image->pid ?>" class="ngg-gallery-thumbnail-box" <?php echo $image->style ?> >
<div class="ngg-gallery-thumbnail" >
<a href="<?php echo $image->imageURL ?>" title="<?php echo $image->alttext ?>" <?php echo $image->thumbcode ?> >
<?php if ( !$image->hidden ) { ?>
<img title="<?php echo $image->alttext ?>" alt="<?php echo $image->alttext ?>" src="<?php echo $image->thumbnailURL ?>" <?php echo $image->size ?> />
<?php } ?>
</a>
<span><?php echo $image->alttext ?></span>
</div>
</div>

Is the above code correct? Am i missing something somewhere? I still do not see the captions show up on the thumbnails on the page.

I am using WP - 3.4.1, NextGen Gallery version 1.9.5 and Atahualpa version 3.7.7

Thanks in advance for your help

you should ask the developer of NextGen this type of question.
if you get it wo work with, say twenty-eleven and it won't work with Atahualpa then ask here, but the place to ask questions about a plugin it to the plugin's author.

I just add template=caption and get the caption.

Did you test before editing gallery-caption.php ?

Have you tried reverting gallery-caption.php to the original code to test?

I also tried the code you mentioned and it just places the alt/title text instead of the description under the thumbnail.