WWW::Mechanize question

I've used WWW::Mechanize before, but not for posting to a form on the 
web. I'm trying to automate some very boring postings of spammers to the 
rfci website. I'm not having much luck with it.

mech-dump tells me:

[cajun@moe new-1206]$ mech-dump 
http://www.rfc-ignorant.org/tools/submit_form.php?table=whois
GET http://www.rfc-ignorant.org/tools/lookup.php
   domain=                        (text)

POST http://www.rfc-ignorant.org/tools/submit.php
   table=whois                    (hidden readonly)
   domain=                        (text)
   evidence=                      (textarea)
   submit=List me!                (submit)


NOTE: There are two fields named 'domain'. This is part of my problem I 
think.

Also, If I try to explicitly put something in the 'evidence' field, it's 
telling me there is no such field.

Here's a snippet of the applicable code:

my $browser = WWW::Mechanize->new();
# tell it to get the main page
$browser->get("http://rfc-ignorant.org/tools/submit_form.php?table=whois");
$browser->field("domain", $_);  # there are two fields named domain
$browser->field("evidence", @body);
# $browser->set_visible( $_, @body );
$browser->click();

Thanks for any pointers where I'm going wrong.

Mike

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