reservation

Hi all! It’s great I found this forum, as most website on train transport are confusing.

I bought a 4 country eurail pass through eurail.com and I am trying to make reservations for two trains:

1. Paris – Amsterdam (TGV connection to Belgium) for Dec 29th, 2010, 4.30 pm (wednesday)

2. Amsterdam – Zurich (CityNightLine), overnight train on Jan 2nd (Sunday night)

I am unable to reserve these trains online! I land in Europe on the 29th only. Do you think –

1. I can reserve the TGV train at the CDG airport itself? I have about 3-4 hours after I land in CDG.

2.