AS edexcel geography A Watch
As for the person who's doing A2 Geography A, Well, I've justed had a look on the Edexcel website and I don't see what the problem is:
Go to this link:
And then click on "past papers and mark schemes area"
Then just enter your centre number (what you enter on your exam paper). They're there for quite a few years.
Hope you find it useful. My username on the New Edexcel Ning site is villameb. Find me and add me.