User Names can not be changed through your profile. If you want your User Name changed then send a request using the form at the link below (SUBJECT - WEBSITE) and one of the admins will change your user name for you and notify you when complete.

http://www.mustang.org/misc.php?do=form&fid=2

Make sure you tell us your old user name and the new one you want to use. It also might be a good idea to check current user names to see if the one you want to use is taken first. You can do this by clicking on this link and searching the user name in the SEARCH MEMBERS function on the right side of the screen.

http://www.mustang.org/memberlist.php