User Registration + Paypal Subscription mashup help

I am developing a site with the user registration + paypal subscription addon. I have several wp roles associated with pricing and various author permissions.

1. How does the renewal work for this?
2. If the subscription expires or is cancelled is there a renewal notification template I can drop on my author pages to allow the account holder to renew with another form?
3. Do I need to create a baseline "expired" role type with zero permissions just to maintain the account after subscriptions expire or are cancelled to allow the user to renew?
4. Can I conditionally check for subscription status and offer renewal somehow on author profile page?

I haven't been able to find much documentation for these instances. Thank you.

@Rob

Thanks for the response. That will be perfect. I am all set to move forward then. What will happen to the user's posts when the subscription expires and their role changes to an "inactive" account status? Author front-end Pay-to-Post is the premise of the site so I need to make sure the existing posts are not affected when the account roles change. I do have the most recent beta installed I believe. I can just have a simple role renewal form for the subscription feed? Is that right? I won't need the full original registration form?

I can handle the role conditional display for form display.

I have a situation where members complete a GF to sign up and pay through the PayPal module. My problem is with renewals. I have set up a page for renewing membership which includes a GF capturing their name, email, membership (price) level. I also have a field set to capture the current date. I set the visibility to admin only, but when I look at the source code, I don't see a 'hidden' field there....am I understanding incorrectly how this works?

I want to get that renewal date into my usermeta so my client can see when folks have renewed.

Is there a better way to do this? From reading this post I'm gathering that there might be some other options.

Thanks.

Ahh, I see....hidden field!

Also, is there a 'standard' method for pushing that renewal date (or any gf field data) into the user's metadata?

Thanks.