Hi pumpkineater,
there was a serious refactor in this plugin code but I've decided to continue the development on GitHub to allow contributors to help me.
I know there was improvements to make to the code but I hope that you'll find the future release less "ugly" : https://github.com/jlethuau/wp-parallax-content-slider/blob/master/wp-parallax-content-slider.php
Since I've installed WPDebug too, I also notice that there are several warnings and notices which are throwned by Wordpress core itself, so their code must be ugly too I think ;)