Bounce Management in SAP CRM 2007

Hi Experts,

we have SAP CRM 2007 and I have a few questions about Bounce Management.

It is a very simple scenario, so it´s fine if only hard bounces for incoming EMails are handled.

1) Do you need ERMS for that simple form of Bounce Mgt?

2) Is the Usage of Inetraction Center required? (We do not want to)

3) Is it possible/recommended to create Activities out of incoming bounces?

4) Can you segment on Bounces, not only within the Campaign Automation?

5) What ist the effort/set up to use Bounce Mgt in that simple scenario about?

Thanks a lot

Florian