We updated the plugin this morning with some minor updates including changing the divs to use all classes and not IDs so the code will be valid XHTML if you have more than one slideshow on a page (archive view, etc). We also added some code to take care of any HTML entities issues that might arise with the slide excerpt.

You can download your copy of this plugin: http://wordpress.org/extend/plugins/sdac-post-slideshows/

Enjoy!