I want to integrate Zen Cart to a third party SOP system

1) After taking the order in Zen Cart I want to authorise the CC without charging the customer - can this be done

2) Extract the sales orders from Zen Cart in a file (preferably csv)

3) Process the order through the 3rd party software and on despatch of the goods send a file back to Zen Cart to authorise payment of the CC

4) I am a UK account can I set up Worldpay via Zen Cart

5) is it possible for address details etc entered in Zen Cart to populate the same fields in the payment module or do they need to be entered again