Rudi's Bestshot Editor is a free utility for editing bestshots. It can be downloaded from http://get.to/bestshots
I experimented a little with this editor, concentrating on specific attributes (ISO, Sharpness, Contrast, Saturation and Color Enhancement). I placed several bestshots on my website, and you can download them from http://www.aridolan.com/z40/bestshots/bs1.aspx
The bestshots are for Z40 camera, but I assume they can be used in other models, provided they are named accordingly (for naming instructions see Rudi's site http://get.to/bestshots
Comments and feedback are welcome.