$NewUserEmailAdminOptions = array(
                'html' => 'text/HTML',
                'fromaddress' => 'Enter your admin email here',
                'from' => 'Enter the name you want your admin email sent from here. eg. Admin',
                'subject' => 'Welcome to %blogname%',
                'text' => 'Welcome %username% please find below your login details.<br /> I hope you enjoy our site.<br /> <strong>Username:</strong> %username%<br /> <strong>Password:</strong> %password%<br /> %loginurl%',
                'admin' => 'yes',
                'adminsubject' => '%blogname% - New User Registration',
                'admintext' => 'There is a new user registered on your blog:<br /> <strong>Username:</strong> %username%<br /> <strong>Email:</strong> %useremail%'
            );
            // If old style options are already in the table, take their value and transform it to the new style
            foreach( $NewUserEmailAdminOptions as $key => $value ) {
                if( $existing = get_option( 'newuseremail' . $key ) ) {
                    $NewUserEmailAdminOptions[$key] = $existing;
                    delete_option( 'newuseremail' . $key );
                }
            }