I found a drity hack way to redirect a user to any page after registration done via Theme My Login ( TML ) plugin.
in the wp-content/plugins/theme-my-login/templates/registration-form.php, look for:
<input type="hidden" name="redirect_to" value="<?php$template->the_redirect_url( ‘register’ ); ?>” />`
here replace $template->the_redirect_url( 'register' ) with echo('www.example.com/whatever.php');
and then Theme My Login redirects to your preferred page.
