ZC V1.5. Being fiddling with this add on.
All going well until I added a description to fadeshow_defines.php fadeshow_defines.php the slideshow disappeared. To get it to work with the description, I had to:

in fadeshow_defines.php change
//EOF
to
//EOF
?>

and in jscript_fadeshow_setup.php change instances similar to
<?php echo FADESHOWTEXT_1_IMG00;?>
to
"<?php echo FADESHOWTEXT_1_IMG00;?>"

Does this seem right?