I would recommend Bristol for the groundschool. I am currently doing module 1 with them and I have nothing but praise (along with half of pprune!)
http://www.bristol.gs
Speak to Alex
I would suggest getting in contact with a flying school. Two good ones local to me in the north of england are:-
http://www.leedsflyingschool.co.uk/
Speak to Dylan
and
http://www.multiflight.com/
Speak to Andy Todd CFI
The caa produce a list of all approved FTO's
http://www.caa.co.uk/docs/175/srg_fcl_ApprovedFTOs.pdf
http://www.caa.co.uk/srg/licensing/fcl/document.asp
Have fun!
Dave
ps Oh, and there are 14 exams for the JAA ATPL
http://www.bristol.gs/course.htm