Joao,
That page actually contains seven forms. Any time you are trying to scrub a form like this you are going to have to look at the way the page is actually constructed and design your code to work with that particular page. You might want to look at website development control like FrontPage to help you determine the how the pages are put together.
You are also subject to anytime the website designer feels like changing the page that your code may break.
Have you tried to see if these sites you are trying to read support a webservice? They would be much easier to work with.
>Why i can´t get the form name from this page
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http://www.worten.pt/home.html"