It's one seat only for sure, however, it's my understanding that if the Lisbon Treaty is ratified (shudder), this opens up extra seats one of which would go to PP.
Yes. However, since the EU bureaucracy seems to take the Lisbon treaty as a foregone conclusion (railroading much lately?)
Needs a referendum here (Ireland) and since the opposition to it (Mainly Libertas, a party that popped into existence just for the purpose of campaigning against Lisbon currently under investigating for having it's money appear out of thin air and refusing to explain, but that's only slightly related) seems to just be spreading blatant lies, claiming that it will bring back the death penalty, legalise abortion and double taxes, it seems unlikely to pass.
That said, I'm not saying the Lisbon treaty is an excellent treaty, I don't know that much about it to be honest, but it annoys me that it lost 53-47 in the first referendum, because I know if people weren't blatantly lied to it would have passed.