Using the 'UserCP' (left hand side, top menu bar) you can edit virtually everything about your own profile including your password, avatar, and Photo Albums, but you cannot change your User Name. vBulletin is set up so that only the site Admin can change User Names. If you would like to change your User Name just send an e-mail to the the Admin (me) at steve@teamkitfox.com, be sure and include both your old and new User Names.

BTW, even the Administrator can't see your password.