This is a step-by-step guide on how to use uTorrent to download Minecraft 1.7.2 for free and play on multiplayer servers.

1. How to Download and Play
Minecraft Online Free
A Minecraftium Tutorial

2. Introduction
This is a guide to download Minecraft for free and play online on
multiplayer servers with other players. Credits go to Minecraftium for
the video tutorial and instructions, TeamExtreme for the cracked
launcher & torrent, and Mojang AB/Notch Development AB for
creating such an awesome game and allowing the game to float freely
around the internet.
Video
http://www.youtube.com/watch?v=a1c5iqh3r-Y
uTorrent
http://www.utorrent.com
Minecraft Torrent
http://minecraftium.com/download/minecraft/

3. Utorrent
A) To download Minecraft you first need a
BitTorrent client, like uTorrent. Go to
utorrent.com to download it.
B) Open uTorrent. It may trick you to download
music or adware towards the end of the
installation, so be careful.

4. Utorrent
C) uTorrent will load but for now just let it run in
the background. Next, go to
minecraftium.com/download/minecraft to
download a working Minecraft torrent.
D) Open the torrent and it will automatically be
loaded into uTorrent to begin the download.
Click OK.

5. Java
E) While you wait for it to be finished, make sure
you have the latest version of Java installed. Go
to java.com
F) Your torrent may begin downloading slowly,
but will usually become faster.

6. Installation
G) Once finished, double click the torrent. Then
open Minecraft 1.7.2.exe to install the game.
H) Choose a username. You will need to register
a password on each server you join.
I) Edit your profile and set the version to 1.7.2.
Save the profile and then play!

7. Playing Online
J) Go to multiplayer to play online. You will need
to add the IP address and port of the server to
join it.
K) That server is full so let's search for cracked
1.7.2 servers.

8. Playing Online
L) Copy the IP address and port of the server
(sometimes there is no port needed; in this case
there is).
M) Go to Add Server and paste the server
address (CTRL + V). Double click on the server to
join.

9. Server Registration
N) To register your password, press Enter and
then type the command:
/register password passwordagain
O) This password is server specific. It's probably
best to register on other servers with the same
password.

10. Note
P) Note: You can only play on cracked servers,
which are the ones don't check for premium
accounts (onlinemode=off).
For more servers, visit
http://minecraftium.com/forum/servers/