I am a web designer and I create a lot of Zen Carts. I loved the idea of this module and installed it to a 1.5.0 cart to use as a basic new client install. Some of my clients will want to use this slide show feature, and some will not. So it is crucial that the ability to turn the slide show off actually works. It doesn't! Most like up to this point, everyone show has installed this module didn't notice the problem because they planned to actually use it! Anyway, I found the error in the code. In the tpl_index_default.php file, there is the following line:
<?php if(ZX_SLIDESHOW_STATUS == true) { ?>
I changed that line in two tiny ways to:
<?php if (ZX_SLIDESHOW_STATUS == 'true') { ?>
and now I can turn off the slide show in admin/configuration/zx slideshow as it was designed to do. Posting this here so the author can correct the code, or other users who need to turn it off, can do so :)