I found links to this audio book
Part 1
http://rapidshare.com/files/155439959/Peter_20Lynch_20-_20One_20up_20on_20Wall_20Street_201.mp3
Part 2
http://rapidshare.com/files/155452361/Peter_20Lynch_20-_20One_20up_20on_20Wall_20Street_202.mp3
Part 3
http://rapidshare.com/files/155456023/Peter_20Lynch_20-_20One_20up_20on_20Wall_20Street_203.mp3
Part 4
http://rapidshare.com/files/155459298/Peter_20Lynch_20-_20One_20up_20on_20Wall_20Street_204.mp3
Enjoy..