You haven't said when the flights are that you have booked!
It has been widely publicised this weekend on the news that Ryanair along with most other airlines (BA excluded) will expect all pax to stump up the extra tax or you will not be allowed to fly.
Ryanair have gone as far as to say that you need to pay it BEFORE you get to the airport or you might be denied travel.
But, if you really want a definitive answer regarding Ryanair flights, why not try telephoning Ryanair? Details of how to contact them can be found on their web site.