If the problem is where the session is starting then you could start the session at the top of your page with this line of code:
<?php if(!session_id()) session_start(); ?>
This should initiate the session for you if this is how you need to have it for your hosting.
As for the Universal Email there is a Solution Recipe for this that is available on the Universal Email support page that can be found here:
In the Solution Recipes section you can check out the sending the form, it will cover the steps that you need to send the form info in an email. If you have trouble with this or have problems with any formatting in the message let us know and we will be glad to help you out.