When I do sudo dpkg -i 1fjbtndrv-kernel-source_2.3.2-1_i386.deb  then I have this readout:

Preparing to replace fjbtndrv-kernel-source 2.3.2-1 (using 1fjbtndrv-kernel-source_2.3.2-1_i386.deb) ...

------------------------------
Deleting module version: 2.3.2
completely from the DKMS tree.
------------------------------
Done.
Unpacking replacement fjbtndrv-kernel-source ...
Setting up fjbtndrv-kernel-source (2.3.2-1) ...

Creating symlink /var/lib/dkms/fujitsu-tablet/2.3.2/source ->
                 /usr/src/fujitsu-tablet-2.3.2

DKMS: add completed.

Kernel preparation unnecessary for this kernel.  Skipping...

Building module:
cleaning build area....
make KERNELRELEASE=3.8.0-16-generic....(bad exit status: 2)
ERROR (dkms apport): kernel package linux-headers-3.8.0-16-generic is not supported
Error! Bad return status for module build on kernel: 3.8.0-16-generic (i686)
Consult /var/lib/dkms/fujitsu-tablet/2.3.2/build/make.log for more information.
dpkg: error processing fjbtndrv-kernel-source (--install):
 subprocess installed post-installation script returned error exit status 10
Errors were encountered while processing:
 fjbtndrv-kernel-source

========================================================================

Looking at /var/lib/dkms/fujitsu-tablet/2.3.2/build/make.log :

DKMS make.log for fujitsu-tablet-2.3.2 for kernel 3.8.0-16-generic (i686)
Thu Apr 11 19:12:37 UTC 2013
make -C /lib/modules/3.8.0-16-generic/build M=/var/lib/dkms/fujitsu-tablet/2.3.2/build modules
make[1]: Entering directory `/usr/src/linux-headers-3.8.0-16-generic'
  CC [M]  /var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.o
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:200:22: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘input_fujitsu_setup’
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:289:22: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘fujitsu_dmi_matched’
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:299:15: error: ‘fujitsu_dmi_matched’ undeclared here (not in a function)
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:364:30: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘fujitsu_walk_resources’
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:387:22: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘acpi_fujitsu_add’
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:425:22: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘acpi_fujitsu_remove’
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:444:13: error: ‘acpi_fujitsu_add’ undeclared here (not in a function)
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:444:3: error: initializer element is not constant
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:444:3: error: (near initialization for ‘acpi_fujitsu_driver.ops.add’)
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:445:13: error: ‘acpi_fujitsu_remove’ undeclared here (not in a function)
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:445:3: error: initializer element is not constant
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:445:3: error: (near initialization for ‘acpi_fujitsu_driver.ops.remove’)
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:446:3: error: unknown field ‘resume’ specified in initializer
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:243:13: error: ‘input_fujitsu_remove’ defined but not used [-Werror=unused-function]
/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.c:249:20: error: ‘fujitsu_interrupt’ defined but not used [-Werror=unused-function]
cc1: all warnings being treated as errors
make[2]: *** [/var/lib/dkms/fujitsu-tablet/2.3.2/build/fujitsu-tablet.o] Error 1
make[1]: *** [_module_/var/lib/dkms/fujitsu-tablet/2.3.2/build] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-3.8.0-16-generic'
make: *** [fujitsu-tablet.ko] Error 2

====================================================

Please help! Thanks in advance!!