HOW-TO: Image Preparation

[lat9]

Your main product image is being displayed because the additional image popup page can't find the additional images. That's because there's a modification to "built in" Zen Cart creation of the additional images popup. Your page's HTML shows:

<div class="additionalImages centeredContent back" style="width:50%;">
      <script language="javascript" type="text/javascript"><!--
document.write('<a href="javascript:popupWindow(\'http://www.krutikraft.com/index.php?main_page=popup_image_additional&amp;pID=30&amp;pic=0&amp;products_image_large_additional=images%2Flarge%2FWallet+with+Mobile+Holder-Maroon_01_LRG.jpg\')"><img src="images/Wallet with Mobile Holder-Maroon_01.jpg" alt="Wallet with Mobile Holder - Maroon" title=" Wallet with Mobile Holder - Maroon " width="100" height="67" /><br />larger image</a>');
//--></script>
      <noscript><a href="http://www.krutikraft.com/index.php?main_page=popup_image_additional&amp;pID=30&amp;pic=0&amp;products_image_large_additional=images/large/Wallet with Mobile Holder-Maroon_01_LRG.jpg" target="_blank"><img src="images/Wallet with Mobile Holder-Maroon_01.jpg" alt="Wallet with Mobile Holder - Maroon" title=" Wallet with Mobile Holder - Maroon " width="100" height="67" /><br /><span class="imgLinkAdditional">larger image</span></a></noscript></div>

instead of

<div class="additionalImages centeredContent back" style="width:50%;">
      <script language="javascript" type="text/javascript"><!--
document.write('<a href="javascript:popupWindow(\'http://www.krutikraft.com/index.php?main_page=popup_image_additional&amp;pID=30&amp;pic=0&amp;products_image_large_additional=images/large/Wallet+with+Mobile+Holder-Maroon_01_LRG.jpg\')"><img src="images/Wallet with Mobile Holder-Maroon_01.jpg" alt="Wallet with Mobile Holder - Maroon" title=" Wallet with Mobile Holder - Maroon " width="100" height="67" /><br />larger image</a>');
//--></script>
      <noscript><a href="http://www.krutikraft.com/index.php?main_page=popup_image_additional&amp;pID=30&amp;pic=0&amp;products_image_large_additional=images/large/Wallet with Mobile Holder-Maroon_01_LRG.jpg" target="_blank"><img src="images/Wallet with Mobile Holder-Maroon_01.jpg" alt="Wallet with Mobile Holder - Maroon" title=" Wallet with Mobile Holder - Maroon " width="100" height="67" /><br /><span class="imgLinkAdditional">larger image</span></a></noscript></div>

I suggest you take your question (with a pointer to this post) to the support thread for your current template.