[Hwona]

Oookay... I'm not exactly great with v1.3.4 or coding, but just to check...
in your adoptsview.php:
$eatForm = new Form("eaters", "eater", "post");
It looks like you're trying to post the form to a page called 'eater' - at least that's how it works with my version.

Try this:
replace $eatForm = new Form("eaters", "eater", "post"); with $eatForm = new Form("eaters", "", "post");

In adoptsview.php, add this to the add function right below $document->setTitle("Do you want to eat me");

if($mysidia->input->post("submit")){
put your "eater" code here?
}

I'm not sure if this is what you were looking for, but I hope it works out for you!