The admin user has a fixed first_name and last_name. You may change it directly in the go_users table. PhpMyAdmin is your friend or use your mysql client tool to change it.
Code: Select all
UPDATE go_users SET first_name="John", last_name="Doe" WHERE username="admin";
Take care ... make backups
The easy way: change the names inside the Users module! Edit the entries of the admin user and your done