hsfmodem drivers problem

I am trying to install hsfmodem drivers on my 64bit box but am getting 
the following errors;

/usr/sbin/hsfmodconflicts: warning: unable to open 
/lib/modules/2.6.28-7.slh.6-sidux-amd64/modules.pcimap: No such file or 
directory
/usr/sbin/hsfmodconflicts: warning: unable to open 
/lib/modules/2.6.28-7.slh.6-sidux-amd64/modules.pcimap: No such file or 
directory

Can anybody have any idea what the above errors are telling me?

Here is the complete output'

# hsfconfig
Conexant HSF softmodem driver, version 7.80.02.03x86_64full

If you need license keys, assistance or more information, please go to:
http://www.linuxant.com/

When reporting a problem for the first time, please send
us the file generated by "hsfconfig --dumpdiag".

Warning: existing driver modules found under:
/lib/modules/2.6.28-7.slh.6-sidux-amd64/
Would you like to keep using them? [no]

No pre-built modules for: Debian-squeeze/sid 
linux-2.6.28-7.slh.6-sidux-amd64 x86_64-SMP

Trying to automatically build the driver modules...
(this requires a C compiler and proper kernel sources to be installed)

Where is the linux source build directory that matches your running kernel?
[/lib/modules/2.6.28-7.slh.6-sidux-amd64/build]

Building modules for kernel 2.6.28-7.slh.6-sidux-amd64, using source 
directory
/lib/modules/2.6.28-7.slh.6-sidux-amd64/build. Please wait...
/usr/sbin/hsfmodconflicts: warning: unable to open 
/lib/modules/2.6.28-7.slh.6-sidux-amd64/modules.pcimap: No such file or 
directory
/usr/sbin/hsfmodconflicts: warning: unable to open 
/lib/modules/2.6.28-7.slh.6-sidux-amd64/modules.pcimap: No such file or 
directory
done.

Warning: no device detected by hsf driver - HDA modems may require reboot

Note: HDA support not compiled in the driver

Jim!