First off, dont panic and grab your towel.
Torrents are very simple, you just gota know what to do, and what to look for.
-What are torrents?
Torrents are a way of downloading files, it is p2p.
P2P stands for Peer to Peer.
Essentially it means that the files, rather that downloaded from a single source, are gathered from alot of other people [peers] who have this file.
Torrents are generally preferred by people downloading large files, or by people with a slow internet connection because of the ability to pause/resume downloads midway, rather that the connection being cut of completely and the download having to be restarted. [as with direct download, ie: rapidshare]
Note, when you download torrents you do so at your own risk, you should not download illegal files and I will not be held responsible for your actions.
-What do I need:
You just need one thing, a P2P Client, basically a program that handles the torrents for you.
I would recommend BitTorrent or uTorrent:
http://www.utorrent.com/ [The u is wierd because that is the symbol for micro, ie: small, due to the programs tiny file size.]
Download and install BitTorrent/uTorrent.
-Where do you get torrents?
There are hundreds of sites, but for now, I recommended thepiratebay:
Once on thepiratebay, search for something you want to download, be it a video, song, even an ebook.
Once the search is complete you will[/may] get lots of results.
Take a look to the right, there are two columns, SE and LE
SE stands for Seeders
Seeders are what your looking for, they are other people "giving" you the file, they have finished their download and are now "seeding" for other people.
You want to look for the torrent with the most seeders, these are generally faster.
LE stands for Leechers
Leechers are people like you, downloading the file, while numbers of leechers is not necessarily a bad thing, vast numbers of them [when compared to seeders] may slow the download [ie: 1 seeder : 100 leechers, one person trying to share his bandwidth to 100 just wont work]
Click on the SE at the top of the column to arrange by seeders, the ones on the top should download faster.
Find a torrent you want, and hit download.
Notice that it is a very small file, that is because it is just text, a "link" that can be read by BitTorent.
Open that file with bittorrent.
Wait for the download to complete
[note: it may take a couple of minutes to get started, and if no seeders are connected, it will not start]
Once completed, you will start to seed [or seed more] click on the torrent and click stop [seed for a while so others can get the file, dont hit and run ;) ] so that it does not continue to eat bandwidth.
Close bittorrent [you will have to right click the icon in the bottom right of your taskbar]
Voila, your download should be in your downloads folder [duh] or wherever you told bittorrent to download it it [check the settings]
Dont do anything I wouldent do ;)
For educational purposes only, I am not responsible for your actions.