.IPD files are locked. Error "You don't have permission"

I was having issues with my PC today and reinstalled Vista.
My laptop has a spare drive that I use to store all of my files on.
After updating Vista I had to reinstall Desktop Manager.
All of the .IPD files on the disk are locked. I can't copy them, use them in Desktop Manager, or anything.
I keep getting an error message stating that I don't have permission to access the files. When I backed the files up I always chose not to encrypt the files.
I've also reloaded OS 5, and now I'm unable to restore my BlackBerry :(

Anyone have a solution?