You then have several possibilities.
You can use an HTML Insertion area on a page by page basis using the page custom Field, and put all your header images and slideshow in that area.
If you are not familiar with page custom Fields read: http://forum.weavertheme.com/discussion/1281/custom-fields-on-pages-what-to-use-them-for-and-how-to-use-them
As far as choosing an HTML insertion area look in the layout below: http://forum.weavertheme.com/discussion/10340/weaver-xtreme-layouts-and-insertion-areas-visualization
Or you can use the Header Widget area with one widget for each header image (layout as one column), then create per page widget areas for each page that needs different content, and use the widget area replacement in the page options to replace the default header widget area by any of the per page widget are you define.