A torrent site is a site that torrent files are shared on the site for others to download, these can include legal and illegal things, these can include music, videos, and programs or software. For this it shouldn't be an issue to download if found (I don't know if it's ok with them) since they require a serial key. There are ways to obtain a serial key and because other than legal I cannot provide but a search online will help for serial keys for it. Since I cannot condone anything possibly not legal I thus cannot help with that.
I provided where you can order the software and the cables as well as how to build the cables which you requested, cost is expensive, yes.
Things you need to start with are checking for misfires, checking fuel system pressure during the problem, check rest of fuel system, timing, compression, and then using diagnostic software to check sensors and evaluate what is taking place during the problem. Another thing to check is battery voltage during the problem and make sure it is charging.
Also please know that dirty injectors usually will not get cleaned by these additives, it usually requires actual removal and professional cleaning.
During the problem you should first install new spark plugs to correct gap, start and as soon as the problem you shut the engine off and pull the plugs right away while hot and "read" them to check for problems such as excessive fuel and or incomplete burn/combustion.