1st of all, your quoted figures are the wrong way round.
Sterling has always been stronger than the Euro, so I think you meant to say 1 Euro was 97p, and 1 Euro was 91p, not the other way round.
As for where its going to go, well thats just guesswork. Every expert has their own opinion and they can just be as wrong as anybody. Too many factors playing into it.
I have read a few media articles saying that many pundits reckon that the Euro will fall back to the likes of 80p, or even 75p by the end of 2009/early 2010. I personally hope it does, as I live in RoI but earn in sterling, so I saw my mortage and household bills get a lot more expensive recently.