关于希腊ANEK船公司的问题！急求高手解疑释惑

船名：F/B PREVELI
航线：雅典PIRAEUS ——Santorini
时间：14 07 2008 2230 —— 15 07 2008 0835
票价：A2 OUTSIDE EUR75
（订的晚了，便宜的票子没有了，因为要在船上过夜所以还是奢侈了一把 ）

航线：Santorini——雅典PIRAEUS
时间：17 07 2008 0915 —— 17 07 2008 1900
票价：AIRSEAT EUR35

我是通过船公司的网站直接订的票子，没有手续费。不过对于取票还是有些不明白。

网站上的条款有几段话：
Once you have made your booking you will receive your on-screen and email booking confirmation. This includes ferry operating company, port address, check-in time and other essential information. On arrival at the port of departure present the booking reference number, a copy of the e-mail you received together with a photo ID and you will be given your ferry tickets.

Tickets are not issued for Internet bookings.
These must be collected from the port of departure prior to check-in.
You must bring a printed copy of this booking confirmation with you.
Check-in is at least 2 hours prior to departure.

有些地方我不是很明白，请高手指点。谢谢！

1. 到底是码头哪里取票阿？船公司在码头的售票处？是不是就是船公司在码头的OFFICE？
2. 凭什么取票？预约号码和打印出来的确认邮件……那个PHOTO ID是指什么？有人知道伐？
3. 至少提前2小时Check in，因为我当天是18的飞机到雅典，直接再坐船去圣岛，从机场到码头的时间是否够啊？