Sparrow's Journey
http://www.fanfiction.net/s/4197196/1/The_Sparrows_Journey
I've been saying for a long time I'm going to do Jack's bio and here it is!
Of course, it's not going to tell you EVERYTHING and the answers may spark even more questions, but this is Jack's bio and he won't let me tell you everything.
There is some romance in it for you hopeless types out there (kind of like me), but it's also a crowd pleaser, meaning there is no real sparrabeth in it (too early) but there are subtle clues within the story for sparrabethers to help us see just how Jack could come to fall for a girl like her.
Summary: This is the story of how he became the Captain Jack Sparrow we all know and love.