LPC2010:

You should really learn how to browse around on CPAN for the interesting words in your question. For example, searching for XML and XPATH quickly turns up XML::XPath, which may be more useful to you than XML::Twig (or may not, I don't do much XML processing here). Spend a little time reading the documentation for some of the XML and XPATH modules on CPAN, and you'll be able to get started.

...roboticus