not really no, I think you'll be had pressed to find a form toolkit that will do what you are asking due to the nature of forms.
the posted form data is only available to the forms action page, this is the page that the form posts to.
Once the forms action page finishes processing, the server deletes the form post from memory.
you would need to configure the external page to process the form data, then populate a new form and post it back to your internal page.