it is sold with money right now nothing free the easy way is to ask your teacher at school to photocopy it for you with answering scheme, but teachers are not handy these days. Good luck.
Go to the examiner board website and there is a way on each to search for past papers. If that fails then go to http://www.thestudentroom.co.uk/ and post on the forum asking for it and someone will give you them!