intense x zinc pack:
intense x pathfinding(free)+intense x copper(trail)+intense x model pack(without license to distribute)

am i right? If yes,then which version of intense x pathfinding is in zinc pack.is it intense x pathfinding 3?
after 30 days of trail period which feature of zinc will be remain in that pack.is it only the path finding?or something more than pathfinding?
Again in zinc pack if i found all features than why i have to buy copper pack.i only have to install a new windows and again have to try zinc pack.is there is lack of some features?
Sorry for this stupid questions.but i have a internet connection of 1-3 kbps.ur answer can save my time.
Oh,where i can find source code of pathfinding 3.