There was a large (24 page) chapter in Target: Smuggler Havens, which is 3rd edition.
There was also an adventure/writeup for 4E that was part of a Katrina charity RPG anthology, but I've never seen it myself. It gets a minor mention in Shadows of North America (3E), and Sixth Word Almanac.
I don't recall if T:SH has been converted to PDF yet, but it's easy to find on eBay.