finger print setup

[Gianluca Cecchi]

Today, when new updates were proposed, I saw also the ones about
fprintd and fprintd-pam that I had already installed on my rawhide.
So before applying them, I went to System -> Preferences -> About Me
and I noticed I had only the "change Password.." button at the upper
right corner of the window.
After some seconds I saw two other buttons magically appearing
(related to finger print setup).
I decided to wait and apply the updates before beginning the setup. So
I did and rebooted the system too (with kexec -l before shutdown, for
what it could matter...).
Now I have
fprintd-0.1-9.git04fd09cfa.fc11.x86_64
and
fprintd-pam-0.1-9.git04fd09cfa.fc11.x86_64

But in the same window as before, I don't see the finger print buttons
coming up.... any hints?
Pc is a laptop Dell XPS M1330 that worked almost well with fingerprint
in F10 using thinkfinger (apart from random crash when I used finger
from unlocking the screen saver...)
lsusb gives:

Bus 007 Device 002: ID 0483:2016 SGS Thomson Microelectronics Fingerprint Reader

reading the page for F11 at
http://fedoraproject.org/wiki/Features/Fingerprint it should suffice
the gnome-about me page....
lshal gives this for the reader:

udi = '/org/freedesktop/Hal/devices/usb_device_483_2016_noserial'
  info.bus = 'usb_device'  (string)
  info.linux.driver = 'usb'  (string)
  info.parent =
'/org/freedesktop/Hal/devices/usb_device_1d6b_1_0000_00_1d_2'
(string)
  info.product = 'Fingerprint Reader'  (string)
  info.subsystem = 'usb_device'  (string)
  info.udi = '/org/freedesktop/Hal/devices/usb_device_483_2016_noserial'
 (string)
  info.vendor = 'SGS Thomson Microelectronics'  (string)
  linux.device_file = '/dev/bus/usb/007/002'  (string)
  linux.hotplug_type = 2  (0x2)  (int)
  linux.subsystem = 'usb'  (string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.2/usb7/7-1'  (string)
  usb_device.bus_number = 7  (0x7)  (int)
  usb_device.can_wake_up = true  (bool)
  usb_device.configuration_value = 1  (0x1)  (int)
  usb_device.device_class = 0  (0x0)  (int)
  usb_device.device_protocol = 0  (0x0)  (int)
  usb_device.device_revision_bcd = 1  (0x1)  (int)
  usb_device.device_subclass = 0  (0x0)  (int)
  usb_device.is_self_powered = false  (bool)
  usb_device.linux.device_number = 2  (0x2)  (int)
  usb_device.linux.sysfs_path =
'/sys/devices/pci0000:00/0000:00:1d.2/usb7/7-1'  (string)
  usb_device.max_power = 100  (0x64)  (int)
  usb_device.num_configurations = 1  (0x1)  (int)
  usb_device.num_interfaces = 1  (0x1)  (int)
  usb_device.num_ports = 0  (0x0)  (int)
  usb_device.product = 'Fingerprint Reader'  (string)
  usb_device.product_id = 8214  (0x2016)  (int)
  usb_device.speed = 12.0 (12) (double)
  usb_device.vendor = 'SGS Thomson Microelectronics'  (string)
  usb_device.vendor_id = 1155  (0x483)  (int)
  usb_device.version = 1.0 (1) (double)

Thanks in advance,
Gianluca