From the PDF:
Over a dozen books were published under the original Atlas Games edition of Feng Shui, and many fans cherish their action-packed contents to this day. Indeed, when Feng Shui 2 was announced, there were some who raised the important question: would this new edition make obsolete their copies of Seal of the Wheel or On Location or Blood of the Valiant — to name just three?
The answer is here: the Feng Shui 2 Conversion Codex! Armed with your Crazy Pack of PDFs (or your much-loved and dog-eared print copies of those very same books) and this document, you can bring old adventures to life, revisit mysterious locations, exchange blows with legions of faceless mooks, and take down bosses and other bad guys with bullet-time bravura. Nothing is ever obsolete, just in need of a fresh coat of chrome and a fountain of chi energy. KI-YAAAAAH!