Hi 
In order to change your forum name, please go to this page: http://en.allods.com/user.
On that page, you should see a button "Edit". That's where you can change your forum name.
Zurion
Ty

, hmm , still shows username is :User_1210400
Try logging out and then back in. I know it took a couple of hours, maybe a day, for my name to change, but I didn't log out. Maybe that's what makes the change to be visible. If on the Edit page you see your new nickname already, then you only have to wait.