How To: Jailbreak PS3 on 3.55 only
STEP 1: Plug a USB stick into your computer
STEP 2: Create a folder in the root of the USB stick called PS3
STEP 3: Create a folder inside the PS3 folder called UPDATE
STEP 4: Download You must login or register to view this content.
STEP 5: Unzip Jailbreak.zip to PS3UPDAT.PUP
STEP 6: Move PS3UPDAT.PUP to the directory UPDATE that you just created on the USB stick
STEP 7: Plug the USB stick into your PS3
STEP 8: Navigate to Settings Tab
STEP 9: Choose System Update
STEP 10: Choose Update via Storage Media
STEP 11: It will say it found Version 3.55-jb
STEP 12: Choose OK
STEP 13: Accept Conditions and Install Update
STEP 14: After less than a minute, your PS3 will update, beep 4 times then shut down.
STEP 15: Power up your PS3 (You will have to do it on the console and not by the controller)
STEP 16: Your PS3 is now jailbroken!

How To: Install Packages
STEP 1: Plug your USB stick into your computer
STEP 2: Drop You must login or register to view this content. into the root of the USB stick
STEP 3: Plug your USB stick into your PS3
STEP 4: Navigate to the Game Tab
STEP 5: Choose Install Package Files
STEP 6: Select the test.pkg
STEP 7: After it installs you will find the test package from geohot installed below the Install Package Files folder
STEP 8: Wait for more packages to be created by the PS3 community