help : Can’t locate XML/DOM.pm in @INC

we are using sun OS 5.8.

we want to convert a xml data into csv file format using perl.

( Actually we did something like this we have installed a expat-1.95.3 libs and try to “USE XML::DOM” but it is giving error like
Can’t locate XML/DOM.pm in @INC (@INC contains: /usr/perl5/5.00503/sun4-solaris /usr/perl5/5.00503 /usr/perl5/site_perl/5.005/sun4-solaris /usr/perl5/site_perl/5.005 .) at test.pl line 2.
BEGIN failed–compilation aborted at test.pl line 2.
.)
we want to know what are the steps to be
followed to install the parser.

We don’t know how to fix this problem
Please advice

thanks

govind