How to connect xBox 360 to iPad 2.

I want to use my iPad 2 as a monitor for my Xbox 360 and I have the VGA converter for both systems.

How do I use my iPad 2 as a monitor like this?

I want to do this because my xBox is connected to our family t.v. and if my lil' bro or sis want to watch t.v. then I can't play.

For my xBox: http://www.walmart.com/ip/Intec-VGA-HD-Cable-Xbox-360-Xbox-360/5651709

For my iPad: http://www.bestbuy.com/site/Apple+-+Dock+Connector-to-VGA+Adapter+for+Apple%26%2 3174%3B+iPad%26%23174%3B/9889724.p?id=1218189847810&skuId=9889724&st=iPad%20vga& cp=1&lp=1