Here are some perl dbi examples (http://www.saturn5.com/~jwb/dbi-examples.html)

You could use one of those perl CSV modules found at CPAN

What is the result you are getting so far using the perl script?

http://sourceforge.net/docman/?group_id=181527

If you could upload some kind of documentation it will be great.

Other than that kudos for contributing to the open source community.

It all depends on what you are trying to do

Sometimes what takes 100 lines in shell to do can be achieved by using a simple perl module !

Sometimes a single bash shell command can do the job...

ppm installation should be much easier

http://aspn.activestate.com/ASPN/Modules/

Whichever mail script you choose please take care to secure it such a way that spammers will not be able to use it to send their mails