Optimising Speed of the server

Consider these products, SEP 11 and Symantec prot. Suite Small business Edition.

 

1. Can I use the licenses of the SEP11 I have spare on some clients so as to avoid buying more licenses than I need with the other?

2. How many licenses do I need with the SBE to cover the Exchange and files on the SBS?

3. Can I use the SEP11 manager on a Windows 7 client to control the other clients SEP 11 antivirus?

4. With the SEP11 manager on a client will this work with the SEP11 antivirus on the same client?

5. Can I avoid using the SBE manager on the SBS as all of the clients for now will be SEP11?

 

Many thanks.