It's on their website now
All flights between 22:00 hrs on the 22nd February until 23:00hrs on the 25th February 2008 will operate as normal
New Bookings cannot be made on Ryanair.com or via a Ryanair call centre between 22:00hrs on the 22nd February until 23:00hrs on the 25th February 2008
Flight Changes (date/time/route) cannot be made on Ryanair.com or via a Ryanair call centre between 22:00hrs on the 22nd February until 23:00hrs on the 25th February 2008 .
Review Existing Booking - passengers will not be able to review their existing booking details on Ryanair.com or via a Ryanair call centre between 22:00hrs on the 22nd February until 23:00hrs on the 25th February 2008.
Online Check-in - passengers will not be able to check-in online between 01:00hrs on the 22nd February until 23:00hrs on the 25th February 2008. Passengers traveling on the 23/24/25 February who are unable to check-in online can check-in at the airport and will not be charged the airport check-in fee.
Please note:
The Ryanair website: Destination Information, Travel Questions, Car, Hotel and Insurance booking facilities will be available during the entire changeover/upgrade period.