You can display a cookie for the value of a form element like this:
<input name="text1" type="text" id="text1" value="<?php echo((isset($_COOKIE["my_new_cook"]))?$_COOKIE["my_new_cook"]:"") ?>" />
To do this I just selected the form element in design view and using the bindings panel I just inserted the cookie value. This of course will not display if the cookie is not set. If you have any further problems with this please post back with a URL and any steps needed to get the cookie set and displayed.