Its now inforce...read the article head line BM06...many people are all ready having to supply the infomation when they book there flights, as people on this topic have already stated.
This ive also copied from another forum site...hope this helps..The following is an extract from an email
This is an extract from the Fly Thomas Cook website
From 20th January 2010, bookings created that are due to depart the UK from 1st February onwards, please be aware of the following:
For entry to Dalaman, you must provide Advanced Passenger Information between 3 months and 7 days before departure.
When you complete your booking, please go to Thomas Cook Airlines to enter your details.
You will need passport and flight details for all passengers. Failure to comply with all requirements may result in delays, refused boarding or denied entry to the country you are entering. The final decision on entry is determined by Border Authorities. Click here for entry information: British Foreign & Commonwealth Office (FCO) Home.
(Please note If you have only just booked please allow 48 hours before entering your API details in order to allow your booking to download to our system)
Go onto Thomas Cook Airlines
Click onto Advance passenger Information ( This is on the first page of our website it is the 3rd white box down on the right hand side)
Fill out details Last name, Departure Date and Booking reference (This is your holiday or flight Booking reference) Example- T123456K, LZ4CGL- These may vary depending on your Tour operator,
Check the flight details match yours then click on Enter Security data ( First green box on right hand side) - If this box dose not show then we are yet to receive your booking download so please try again in a few days.
This will then ask for all the passengers on the booking passport details and General information regarding full names and age.
If this fails to work please email us back with full contact details, full booking details and we will contact you ASAP or Call our team on 0844 855 0515,
Before emailing us Please read the below to check you need to add API information for your destination and time frames that this can be done in.
If travelling to any of the following destinations after the 1st February 2010 you can enter your details no earlier then 3 months before you are due to depart
Goa
Gambia
Maldives
Kenya
Mexico
Taba,Egypt
If travelling to any of the following destinations after the 1st April 2010 you can enter your details no earlier then 3 months before you are due to depart but not before the 20th January 2010
Greece
Turkey
Italy
Egypt
Bulgaria
Costa de Almeria
Costa Doradais helps..