I had a question about getting a copy of the AX2009 demo data for use in testing. You can find this on partnersource here
The DB on the demo VM has a few modifications over this posted copy of the data.
Also if you are using this copy of the data from partnersouce you might want to have a look at this post I did earlier in the year on updating the dates in the demo data.
(Original post at http://blogs.msdn.com/lcash)