Populating a Form Field

Hi, ok here is the situation. I have a form and I need to get the First Name, Last Name, etc on the next form. I want to populate the 2nd form from the value of the First Name and Last Name. Can you please tell me the steps to do it? I want the parameters to be send as $POST. Thanks!

Alright, Actually it is a single form, but I used page break on it, so I guess it uses multi-page form. Page 1 has the First Name, Last Name, number, etc. then the second has other information then I need to display the First Name, Last Name, number, etc.

Hi, why didnt get back to me? Anyways, what are the parameters need in this method:

add_filter("gform_field_value_service_city", "populate_service_city");
	function populate_service_city(){
	  global $post;
	  $service_city = get_post_meta($post->ID, company_description, true);
	  return $service_city;
	}

what are the parameters in add_filter()? is it add_filter("form name", "function name")?
get_post_meta()? what is ID, what is company description and what is the boolean true in it?
thank you very much.