As GOG usually includes a number of goodies to sweeten the deal for particular games, it's worth noting that the old Akella Sea Dogs page (still available in the Wayback Machine) has screenshots, artwork and wallpaper that so far have not been made available through GOG. Check the Download section at the following URL:

https://web.archive.org/web/20010814170138/http://www.akella.com/seadogs/main-eng.html