purchase:
http://greenpois0n.com
Follow steps
Wait for
iPad to jailbreak
Load-up iPad and click "loader/installer"
Install Cydia
Done!
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To maximize jailbreak features you need to search on my friend's site:
How to add sources on Cydia (allows you to purchase more Cydia content than first load). Add as many, popular sources a possible
How to purchase winterboard (allows you to get themes)
How to purchase installous and appsync (allows you to get real apps)
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If you need help jailbreaking, just search "iPad 2 jailbreak greenpois0n (then firmware, probably 4.3)
So it looks like:
iPad 2 jailbreak greenpois0n 4.3
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Post jailbreaking is at first fairly confusing so it REALLY HELPED me to watch my friend's site videos such as what I've said above as well as "best Cydia apps/themes/add-ons", "what to do once jailbroken" etc
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Good luck, follow my, and my friend's site videos' advice and you'll find it a breeze; if not, then you'll soon realise you need to take my advice :)