The old Pool aviation school at Welshpool is no longer there, last time I was at Welshpool before Christmas there was a 172 available for rent but that was about it. I got a business card off the guy running the place so if you want to call and find out what the story is you can try him at:
01938 555560
I've heard Pool aviation have moved elsewhere but cant remember where. Sorry can't shed more light on it.