This is the Camtasia Studio tutorial on retrieving a URL for Soundslides using Dropbox.com.
For many semesters we were at a loss at how to upload the SS projects into blogs, but then I found this solution.
It's not perfect...the html code would be preferable, but baby steps are better than not walking at all. Here's the tutorial I created yesterday so I remember the process in the Fall:
(If you're having a problem viewing this link on Safari, try Firefox.)
(Update as of Jan. 11, 2013: Soundslides now offers a hosting site for Soundslides project. Once you sign up for the hosting site on the SS website, you can retrieve the embed code, though it's not free. It'll cost $12 a month for the service.