couldn't find inv_index file

Hi all,
 I am  a new user to perlfect search. I am facing lots of problem when I
tried to use it. I need all ur help to solve the problems.
 
 First,
 I couldn't install search.pl. It is saying that DB_File.pm is not
found. I am having SDBM_File.pm. Whether DB_File.pm is mandatory or
what? If so how to install it.
 When I tried installing DB_File.pm it is saying that Berkley DB needs
to be installed. I downloaded that Berkley DB and built the win32 work
space. what should I do after that?
 I am totally lost. Pls. help me to solve the issues as early as
possible.
 
rgds,
vinai

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