Slideshow update...
...apparently all my issues with slideshare botching my slideshow have worked themselves out. And I had nothing to do with it. Maybe it was my mom's computer, because no one else complained about it and the tech help at slideshare couldn't find anything wrong and it all looks great on this computer. So I guess that's it. It works. Yay. Now if only everything else in my life would come together so neatly.