Maybe you've already resolved this, but I was doing a search on the Winona website and came across your post. The specific page you linked to is a product page, which is how the slideshow is displaying next to the text. You can also achieve this with a little bit of CSS by adding a slideshow gallery section, a section with text, and setting the width of both to 50%. This tutorial will help you to achieve that.
Another option would be to set up a product page and hide the product options using CSS (price, purchase button, etc.). I like the first workaround better, but they can both get