These people crying out for help on using rar and torrent really need to get off their butts and do a search on their favorite search engine.
First search for and download 7-zip (thats a free software that un-compresses rar files and many others).
After u install it then right click on the rar file u are trying to open and choose "extract here". Thats it.
As for torrent u need a torrent software program. Same way as you need Adobe acrobat reader to open a pdf file, you need a torrent software to open a .torrent file.
I like "BitComet". search for that and install it. The actual torrent file is very small but then you open that little file with BitComet and thats when the real download begins for the ACTUAL movie, pirate software, or pirated CD or whatever it is you are trying to get your hands on.
You owe it to yourself to figure torrent out as it is much better than LimeWire or the rest of the P2P fileshare programs.
Want to see every UFC ever for free? Want to get any CD ever for free?
Well if you answer yes then figure out how to use torrent. It is not hard and this forum is not the place to ask these kinds of questions.
Search for "how to extract rar files" and "torrent how to noob" and all the answers are there man.