imgdb.so missing

imgSeek reports the following when started:

Starting imgSeek, please wait ...
--------- Traceback ------------------
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/imgSeekLib/ImageDB.py", line 53, in ?
    import imgdb
ImportError: No module named imgdb
Cause: Warning: Unable to load the C++ extension "imgdb.so" module. Make sure you installed imgSeek correctly, and email any install bug to "<email address hidden>".
--------------------------------------
You have found a bug, please help us by submitting the text above and a precise description of how you caused it to "http://imgseek.sourceforge.net/bugs"
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/imgSeekLib/imgSeekApp.py", line 34, in ?
    from imgSeekLib import Error, ImageDB, dbCallbacks, customWidgets
  File "/usr/lib/python2.4/site-packages/imgSeekLib/ImageDB.py", line 56, in ?
    sys.exit()
SystemExit
imgSeek: Unable to find one of the modules required. Make sure imgSeek was installed properly.

the module is missing from the package compeletely:

ressu@denial:~/ > dpkg -S imgdb.so
dpkg: *imgdb.so* not found.