Club Penguin Igloo Upgrades February-March 2011 Cheats and Secrets

At the same day, Club Penguin updates the Igloo Upgrades. Here are the cheats for Igloo Upgrades February-March 2011.
You should go back your igloo, then click "Edit Igloo". Finally, click "Upgrade Igloo". This is the newest Igloo Upgrades.


And this is the new igloo - In Half Igloo. Check it out!


But there are still no new igloos hidden on it. You can click here to know how to find the secret igloos.