[SOLVED] Multi step form, passing value to a form, custom form in custom block

Hi all! It's my first post here!
I've a block (created by mine module ) that contains a form created by same module. ( we'll call this form: form1)
I've another form that is created by drupal interface ( is a node/content_type/add form ). ( we'll call this form: form2 )
I want that when i click "submit" button, all parameters from form1 go to form2 and form2 is loaded in main content.
I don't know how to pass parameter and load form2 ... I've implemented form_alter and it is called :D

my "example core" code:

<?php

function ecustom_form1_form()  // modulename_formname_form = module_hook_form()
{
  if (node_access('update', $node)) 
  {
    if(!function_exists('node_form')) 
    {
      module_load_include('inc', 'node', 'node.pages');
    }
  }
  return drupal_get_form('form1_form');
}

function form1_form($form_state) // formname_form = hook_form()
{
  $form['field1'] = array(
    '#type' => 'textfield',
    '#title' => t('field1'),
		'#required' => TRUE,
    '#size' => 30, // added
    '#autocomplete_path' => 'taxonomy/autocomplete/field1',
  );

  $form['field2'] = array(
    '#type' => 'textfield',
    '#title' => t('field2'),
		'#required' => TRUE,
    '#size' => 30, // added
  );
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => 'Submit',
    // '#submit' => array('form2_send'), // if i want to customiza submit function = submit callback
  );

  return $form;
}

function form1_form_submit($form, &$form_state) // formname_form_submit = module_hook_form_submit()
{
  drupal_set_message(t('The form has been submitted.'));
  // now here i want to load form2 passing $form_state that contains all value in input field :) ... how?
}

function ecustom_form_alter(&$form, &$form_state, $form_id) // modulename_form_alter = hook_form_alter()
{
  if($form['form_id']["#value"] == 'form1_node_form') {
    //modify form1 ... i think no needed
  }
  if($form['form_id']["#value"] == 'form2_node_form') {
    //modify form2 ...  = assign #default_value and disable if is possible
  }
  return $form;
}

//bonus code ... load a form in a block
function ecustom_block_info() {
  $blocks['form1_block'] = array(
    'info' => t('form1 block title'),
    'cache' => DRUPAL_CACHE_PER_ROLE, //Default
  );
  return $blocks;
}

function ecustom_block_view($delta = '') {
  switch ($delta) {
    case 'form1_block':
      $block['content'] = drupal_get_form('form1_form');
      break;
  }
  return $block;
}

?>

Am i doing all right? Am i missing or doing something wrong? ( exclude my english ... :) )