Primavera Implementation Company Level

Gentlemen I have lots of questions which I would like to discuss here.

I m Ahmed working with a Construction group in gulf. Recently, our company migrated to Primavera 6.0 and we intend to implement it on our all sites which happen to be 30. Some of them as big as having 100,000 activities in the schd. We did started our work but we are facing some serious problem regarding connectivity and speed of the software as the server is placed in the Head-office and all planners are working at sites on the network.

I am researching these days minimum requirements for Primavera

1. System requirements at user end, I have some idea but still I would like if someone could give me some advice as it will clear my doubts.

2. Specially what internet connection or bandwidth we should target? Should we use a dedicated line or shared line and why?

3. How can we make efficient connection between server and client (users)?

4. Which software we should use to make the connection citrix / VPN / microsoft terninal server / compression server or anyother software/technique which will give efficient results? Please explain!

5. I have been also stuck in this question that if primavera supports Resume or discards it?

6. Primavera web is usually very slow and with limited options how can we use it effectively if nothing works?

7. I know its a strange question but anyways.....Since we are migrating to P6 the attitude of all the planners at site is a bit shaky....u know may be they are afraid of this situation how can I tackle it?

If somebody can help I would really appreciate it. Thanks