on the first page have the form set to post to itself. use the Data Assist insert record behavior to insert the form data, In the insert behavior, you can set a session name to save the ID of the inserted record, make note of this session name. then the Universal Email behavior to send the email, in Universal Email behavior, set it to redirect to the second form.
on the second form, again, post to itself, and use the insert behavior to save the form data. Int he relationship column, bind to the session set by the first insert. again use Universal Email to send the form data.
if you need help in setting this up, we can help through a premiere support appointment: