torrents are a file sharing medium that have replaced applications such as napster, kazaa, and limewire. unlike early peer-to-peer file sharing, torrents partition the media so that you can download packets non-sequentially. and its easy to use. look up azureus and utorrent to use as client programs, there are kajillions of torrent search sites.
i think peer-to-peer evolution began from usenet, moved to ftp and irc, then napster and co, and now torrents. or something like that, i'm not an expert
so the next question, is even if you are able to successfully download the installation exe file, will you be able to decipher the serial crack technique, they are getting trickier and trickier all the time. master collection wasn't too hard if i remember correctly however.
then you have to learn how to use the damn program. save all the time and have backup files. for video editing, you are much better off with final cut, but if you must use windows, i recommend avid express of adobe premiere, but there are other simpler programs that might be more appropriate given that i now have doubts regarding your technological intuition