Finding Library Dependencies - MxEasy Security Camera Software

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I am trying to install Mobotix's MxEasy security camera software, but it's refusing for dependency:

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# dpkg -i /home/bill/dl/MxEasy_1.3.2-ubuntu-10.10_amd64.deb 
Selecting previously deselected package mxeasy.
(Reading database ... 135273 files and directories currently installed.)
Unpacking mxeasy (from .../MxEasy_1.3.2-ubuntu-10.10_amd64.deb) ...
dpkg: dependency problems prevent configuration of mxeasy:
 mxeasy depends on libsdl1.2debian-all (>= 1.2.13); however:
  Package libsdl1.2debian-all is not installed.
dpkg: error processing mxeasy (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 mxeasy
# apt-get install libsdl1.2debian-all
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package libsdl1.2debian-all is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  libsdl1.2debian-alsa libsdl1.2debian
E: Package 'libsdl1.2debian-all' has no installation candidate
# apt-get install libsdl1.2debian-alsa
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package libsdl1.2debian-alsa is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  libsdl1.2debian-all libsdl1.2debian
E: Package 'libsdl1.2debian-alsa' has no installation candidate
#
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I have libsdl1.2debian installed.  I went ahead and bypassed dependencies with --force-deps and it installed, but there is no picture I presume because of the absence of something in DirectShow.

I looked for libsdl1.2debian-all in Debian's packages and found it in Squeeze and Sid, but not Testing.  Technically this MxEasy package is for Ubuntu, but I've never had a problem like this before.  

I know there is a way to check an app to find out what libs it's calling for, but I can't remember how.

Can anyone advise?