You can update your personal information from Bildy settings window.
Open use.thebildy.com and login to Bildy with your account information.
Open the settings window from the "settings" button located at the top right corner.

Your personal information will available for your editing. When you're done, press the "update" button.
If you want to change your password, first fill in your current password. Then type your new password and to make sure it's correct type it in once again in the last field.

Please note: We are working to get your personal information more widely editable.