I'm looking at buying the Vodafone 555 Blue this weekend and I was wondering how do I pay for the Facebook integration. My questions are as follows:
- Do I pay as I go for Facebook?
- Do I have to use the Facebook facilities, seeing as the phone is Facebook integrated?
- How much does it cost to use facebook?
- Do I have to pay in advance/monthly/as I go/not at all
- Do I have to pay for 3G fees as well as Facebook?

I am in New Zealand so please only give details for the New Zealand Vodafone network.
Please only answer if you can answer all of my questions.
No links to other pages please.