Greetings.
I keep a few links to Suicide Junkies Pirates and Nomads campaigns, which are improved versions of the original stock ones. You can find a few links here:
http://www.captainkwok.net/sfresources.php
There are also elements of a Battlestar Galatica mod, and an original mod called the Peoples Mod. Both are in various stages of development.
Battlestar Galatica Downloads:
http://dumas.homeip.net/other/MM/SF/mods/
Peoples Mod Homepage:
http://koti.mbnet.fi/sfhaven/