The following positions are added by the plugin and correspond to the slide numbers of the widget.
S5 ImageSlide - Slide #1
S5 ImageSlide - Slide #2
S5 ImageSlide - Slide #3
S5 ImageSlide - Slide #4
S5 ImageSlide - Slide #5
S5 ImageSlide - Slide #6
S5 ImageSlide - Slide #7
S5 ImageSlide - Slide #8
S5 ImageSlide - Slide #9
S5 ImageSlide - Slide #10
Be sure to add widgets to the new positions in order, not S5 ImageSlide - Slide #1 and then S5 ImageSlide - Slide #4; they must be in sequential order.
After installing the widget simply publish it to your site and add URLs to images located on your server; once this is done the fader will start cycling through the images, be sure to add them in order from 1 - 10.