Membership 3.0 Subscription Form Tweak?

On page 12/60 in the new online manual for the Membership Plugin (found here: https://premium.wpmudev.org/wp-content/uploads/2012/03/Membership-Docs-3027.pdf), how do I tweak the subscription form to be able to require a name field and an email address? As shown in the bottom of the page there are asterick denoting required fields. That is what I want to know how to change. Also, does the requirement get validated, i.e. via a valid email address and if not, how would I do that using this plugin or is that an option?

Thanks tons! Amber