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want to show as content of your page.
Maybe you should get rid of this script then and use a FORM content element 
instead.
Or maybe you can install an extension form the TER that offers feedback 
forms in a more comfortable way than the default FORM.
Or if you definitely need this script you could learn how to implement just 
the functional parts of it within your own extension and get rid of the 
parts that override the output of your PAGE element.

But anyway I think you should take a step back and think about the term 
"content management system", which is much more than just putting together 
some scripts that you might have used before. In most of the cases you won't 
need any custom scripts at all because TYPO3 offers ready made and flexible 
solutions for the usual content of a website.

What about a more detailed description of the current status of your site 
and the things you want to acchieve with these scripts?

HTH

Joey