download Absinthe here
Step 2
Extract the absinthe application and and launch the absinthe application.
Step 3
Connect your iPad 2 or iPhone 4s via USB and remember to remove any passwords or VPN.
Step 4
CIick the Jailbreak button.
Step 5
The application will take you through several steps : Sending initial data, waiting for reboot, waiting for device to finish booting, preparing jailbreak data, and sending payload data.
Step 6
the application will tell you that the jailbreak is almost done, not done but almost.
Step 7
On your iPad 2 or iPhone 4s there will be an application called Absinthe press it. (it could be on any homescreen, so find it)
if the server is down there will be an error establishing a database connection then tap open up your settings and turn on your VPN
you will get a configuration error but in a minute or so, your iPad 2 or iPhone 4s will reboot and the Cydia icon will be there in your device.
So if you have any question I'll be happy to oblige.
HAVE FUN