Cracked versions of simulation software are often unstable. In the world of injection molding, a 5% error in flow prediction can lead to thousands of dollars in wasted tooling costs. If the crack breaks the solver's precision, the software becomes useless.
You're looking for information on Autodesk Moldflow 2012 and possibly how to obtain it via a torrent. Here's what you need to know: autodesk moldflow 2012 torrent