Hi Alex,
Yes the question database at Bristol is available to anyone at all. It costs 30 Euros for 3 months access. I'll be signing up next month.
The link is on the main page of
http://www.bristol.gs/ - the first section under "Latest News" - just a little scroll down from the picture of their building on their main page.
The direct link is:
http://213.48.96.23/jaaonline/jalo/index.asp
Click on the Enter, then "not a member? click here to join". Payment is via Paypal. Don't know why it goes to an IP address instead of a domain.
Editing this post to say: Oxford have published a CD-Rom with 2000 JAA ATPL questions. Its available from a few pilot shops.
http://www.oxfordaviation.net/shop/examprep.htm
Hope this helps.
Best wishes,
Charlie Zulu.