[themes] Theming forms in a table

[Juan Carlos Vallejo]

Hello

   I am trying to insert a form in a table. I want the result to be
similar to module table admin->modules. I have read some topics in
drupal home page like:
  - http://drupal.org/node/82916
  - http://drupal.org/node/97361
  - http://drupal.org/node/47582 (the last comment is very clear)

  I have got to insert the form but when I click in the button (submit)
in form_id_sumbmit function I do not receive this element values. What
am I doing wrong?

Regards