Aer Lingus Current Sale to Uk

I have been watching flight prices for a while. Could others check am i missing something in the advertising for this sale. Its says just pay taxes and charges so i naturally assume nil fare

http://www.aerlingus.com/cgi-bin/obel01im1/Services/ie_jptcUK_200410.jsp?P_OID=0&Category=3

So I want to go to Blackpool in Uk from 05/06/10 to 07/06/10(bank holiday weekend)

Going out 5/06/10 €37.99 before taxes

coming back 07/06/10 €41.99 before taxes

A nil fare is already €78.98

Honestly I just like to know am i missing some small print on the link screen.

I dont honestly think in this current sale their was any nil seats sold already for that weekend.

As with all sales, it doesnt apply to every seat on every flight. There are only a certain amount of "free" seats on each plane.

Dublin to Blackpool depart on 12th June, return on 16th June - Fare is Nil, taxes and charges are €70.31 (Return)