You can Use a program like 7-zip or Winrar to put .rar the files together (you have to choose to extract all of them at once or it wont work). There should be a .iso file in the folder you get after you do that. I use the program Daemon Tools Lite to mount the file onto a blank disc so it will run the setup. And yes, you need a CD to do this (it can be blank or one that already has stuff on it. Doing this doesn't actually change the files on the CD). After you choose to mount the .iso file, the setup window for the game should pop up. If it's in English, follow the instructions. If it isn't... uh, click random buttons until you get it right.
Idk what you do with the English patch... probably put it in the folder with all the files you get after setup and run it. I can't help you with the voice patch files, since I could never get them to work to begin with. :/