Where are achievements stored?

[mrhanman]

I just reloaded my PC (New HDs), and I was hoping I wouldn't have to start over on my progress.  My old hard drive is still an unmolested state, so what should I copy over from my AVWW folder, besides the Worlds?  I realize I could just copy the whole thing, but I'd rather just get what I need.

EDIT: Never mind.  For anyone interested, they are in the settings.dat file in the RuntimeData folder.