It's pretty easy, all you gotta do is click on your display name, click "Change display name" And then type whatever you want in the box.
if you live into the UK you are directed here automatically. if you don't live in the UK check your regional settings in the control panel
Options, display name, x
the same as on normal msn
First you go to pick a profile image and then it gives you choices of images. Pick one and it will show up on your msn square profile