I have seen this issue in my Vista also. Here is what I did.
1. Unzip your Data folder anywhere but not where your A:M is installed
2. Drag those files from each folder in side the data folder where you just unzip, and drop them into where they belong in side the A:M data folder.
Do not use copy and paste.
I did with the copy and paste and they do not show up, but when I use the drag and drop they do show up. Try it if this might help.
CHEERS!