form processing

Hi there,

I am looking for some simple solution for the next problem:

I have 4 template pages which all represents different steps of form. When I go to the first, let’s say I have url https://somesite.com/somepage. There is a form with action=<?php echo get_stylesheet_directory_uri(); ?>/second_step.php
And this works. Problem is:
1) I don’t have a nice url for it
2) It’s not in a page template, I am missing header, footer, everything… It’s just a blank page with the code I wrote