From Showit Manual
Slideshow (also known as Showit Web) is a slideshow program developed by Showitfast, Inc. This tool allows you to create slideshows timed to music with zooms and pans. Slideshow can be purchased for a single one time license fee for a Lite and Pro version through the Showit Software Store.
Adding to Your Website
You can drop a completed Slideshow directly into your Showit website and then arrange it on any page. You can do this by dragging the folder containing the show or the "showit.swf" file contained in the folder.
In Showit, you have two options to decide how the slideshow starts. If you check the box on the "Advanced" tab for "Ask To Play", the slideshow will display the first image and a play button. If you uncheck this box, then it defaults to the setting that you chose in Slideshow on the "Controls" tab for the option that says "Start Show With". Set this to "Slideshow" to make the show play automatically or set it to "Gallery Thumbnails" to start with thumbnails from the show. This setting must be set and then saved for the show before dropping it onto your site. If you change this setting, save and then drop it back into your media library and overwrite the previous version.
Slideshow was built on Actionscript 2 and the Showit websites are built in Actionscript 3. For now there are some limitations caused by the different versions because the two versions don't communicate very well together. Most obstacles have been overcome, but one to note is that if a slideshow is loading and the music hasn't started playing and you leave the page, once the music loads it will start playing and there isn't a way to stop it without refreshing a page or going to another page and leaving it that has a Slideshow on it. Flash 10 introduced an API that can fix this, but until we decide to force our users to upgrade to this version, we can't take advantage of the new API. If this is a big enough obstacle to using the two together, you could launch the slideshow into an Overlay Link.
Another known issue is the slideshow loading in the wrong spot on the screen and then moving into place if the browser window is adjusted. We have not determined any fix for this issue due to Slideshow still using Actionscript 2.