Instructions follow:
1. Use jzip program to unzip the file in instruction #3, you can download it from: [ Register or Signin to view external links. ]
Dont download it if you are using a Mac
2. Download the Firmware for your device here before run Redsn0w 0.9.6, save it to your desktop and then go to:
FIRMWARE: [ Register or Signin to view external links. ]


3. REDSN0W 0.9.6b4:
Mac:
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Windows:
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Open redsnow 0.9.6b4 from the same folder which you extracted to your desktop. Once redsnow 0.9.6b2 open click the browse button.
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Select the official iOS 4.1 IPSW you downloaded and then click Open.
Once the firmware has been verified click the Next button to continue.
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redsn0w will now prepare the jailbreak data.
From this window you can select the jailbreak options you would like.
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Choose to put your iPhone in pwned DFU mode.
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redsn0w will guide you on how to put your device in DFU mode.
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Please plug your iPhone into the computer and make sure its OFF then click the Next button
redsn0w will now guide you through the steps to get into DFU mode. You can find more help with DFU mode here.
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Hold down both the Home button and the Power button for 10 seconds.
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Release the Power button and continue holding the Home button until redsn0w detects the device.
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redsn0w will now exploit your device with limera1n.
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Your device will now be in pwned DFU mode. Dont close redsn0w yet.
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How to: Unlock iPhone 3GS & 3G on iOS 4.2.1 / 4.1:
Step 2: Once you are done with the jailbreak, you can now unlock your iPhone on any baseband using Ultrasn0w 1.2 from Cydia. To do this:
Start Cydia on your iPhone.
Touch on Manage tab on the bottom.
Now touch on Sources as seen in the screenshot below:
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Touch on Edit and then on Add. You will be prompted to enter a url source as seen in the screenshot below. Typehttp://repo666.ultrasn0w.com and touch onAdd Source to add this repo if you havent already.
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Cydia will now automatically update your sources by following a series of automated steps.
After installation is completed. Search for ultrasn0w 1.2 in Cydia and install this application. This app will automatically unlock your iPhone so that you can use it with any carrier.
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Step 3: Now simply restart your iPhone and voila! you should now have a fully unlocked iPhone 3GS or 3G, running iOS 4.2.1 !

Hackulous Tutorial: How to get Free iPhone Apps

If you want to get free apps for the iPhone or iPod Touch, you must first have your iPhone or iPod Touch jailbroken. After that, simply get on Cydia and add the Hackulous repository;
Cydia -> Manage -> Sources -> Edit -> Add
Enter the link [ Register or Signin to view external links. ] like the picture below.
Thanks to: Caged Insider :Inside Source on everthing MMA
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After adding the source for the Hackulous repository to cydia, the next step is to download the Installous app for the iPhone or iPod Touch. The Installous app will be your source for apps.
Cydia -> manage -> Packages
From there whether you want to perform a search function or just scroll down and find it, you will have to install the Installous app. TheInstallous app will be like an alternative to the iPhone app store.
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Once the Installous app is on your springboard, you can use it to find the many apps that are available for the iPhone and iPod Touch. The app will often redirect you to hosting sites via the browser

but from there just simply select a mirror and you should be able to enjoy the apps free. Have a great day and dont hesitate to ask questions!


Winterboard Themes For Jailbroken iPhone
Go to Cydia installed on your Jailbroken iPhone.
and then go to Sections tab available at the bottom.
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Under Sections Tab, Go to System Menu.
and then locate Winterboard and press it.
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Press the Install button available at the top right side of the screen.
On the next screen, hit Confirm button at the top right side to start Winterboard installation.
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Winterboard setup will be downloaded and then installed.
On completion, Press The Big Reboot Device button at the bottom.
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After Reboot, You will find Winterboard icon on your iPhone Springboard. Press it to launch Winterboard.
When opened, you will find a list of customizations available in Winterboard. OK. We will take you through all these customizations to show you what exactly they does.
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Features and their Effect
User Wallpaper
This feature let to set any wallpaper as your springboard background. and in case you have installed any theme this feature will also get rid of that background.
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User Lock Background
It will replace any background applied to iPhone Lock screen with the wallpaper that you have selected in iPhone Settings.
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Transparent Dock
After enabling this option, your iPhone Dock will be transparent as shown below.
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Solid Status Bar
Status bar will become to the front with a solid fill. Compare the above and below screenshots to find the difference.
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Server Lock Example
It shows data loaded from some external server on to your iPhone Lock screen.
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Saurik
Its a custom theme that applies motion background and changes the font style of your iPhone. Indeed a cool video background. How to install themes using Winterboard (Comming Soon!)
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No Undocked Icon Labels
Selecting this feature remove text labels of all iPhone Apps except that are on the Dock.
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No Docked Icons Labels
This feature remove text labels of all Docked icons.
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Dim Wallpapers
This feature requires to enable User Wallpaper to show results. This feature actually Dim the background wallpaper so that your iPhone apps icons stand out more.
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Dim Icons
This options will Dim your applications icons along with Dock bar and docked icons.
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Black Navigation Bar
This option turns the color of Menu Title bar in to black for many apps.
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