OooopS! Maybe you realised that you should have used a name that people will remember you by and want to change it. Follow these steps:
To change your name or username, log on , on the blue bar , click on profile----> In the left hand column under Modify Profile click on ----> Account related settings---> and change your name or username and then scroll down to the bottom right hand side of the screen and click, change profile....
And there you are!
;)