Capitalization error causing 404 calls

add-images.php:209 and 210 have the following capitalization errors in the URLs of their script srcs:

<script src="<?php echo WP_PLUGIN_URL; ?>/reflex-gallery/scripts/prettyPhoto/jquery.prettyPhoto.js" type="text/javascript"></script>
<script src="<?php echo WP_PLUGIN_URL; ?>/reflex-gallery/scripts/prettyPhoto/ReflexGalleryLoader.js" type="text/javascript"></script>

should be

<script src="<?php echo WP_PLUGIN_URL; ?>/reflex-gallery/scripts/prettyphoto/jquery.prettyPhoto.js" type="text/javascript"></script>
<script src="<?php echo WP_PLUGIN_URL; ?>/reflex-gallery/scripts/prettyphoto/ReflexGalleryLoader.js" type="text/javascript"></script>

Maybe it worked for your testing server because it’s a windows or something (non case-sensitive urls)

http://wordpress.org/plugins/reflex-gallery/