This feature is included in newer versions of the Talex Webshop.
The images you want to be displayed in the slideshow you upload in the file manager ("tools" -> "file manager") to the directory "image_slider".
In order for the slideshow to look as good as possible, all images should be the same size (width and height).
Then go to Slideshow ("tools" -> "slideshow") There you can add a new so-called "slide" for each image you have uploaded.
When you feel ready, go to the slide show settings ("settings & design" -> "slide show").
There you set the height and width of the slide show to the same size as the images you have uploaded.
Then you can activate the slide show by changing the value for "Slideshow active" to "Yes".