Hello,
Sure, just grab "lytebox.js" and "s5_vm_product_show.js" from the 1.0.x version of etensity and place these files in the JS folder of the Your Store template.
Add the following line of code right before you closing body tag:
<script type="text/javascript" language="javascript" src="<script type="text/javascript" src="<?php echo $mosConfig_live_site;?>/templates/yourstore/js/lytebox.js"></script></script>
Add the following line of code right before you closing body tag:
<script type="text/javascript" language="javascript" src="<?php echo $mosConfig_live_site;?>/templates/yourstore/js/s5_vm_product_show.js"></script>
Regards,