Thanks Quads. I tried the samples you provided using my decrypter and the encrypted files were decrypted just fine after I imported the user's decryption keys to my registry :).
I have just also tried it by importing the key on a Win 7 system and right click the decrypt tool select the "Run as Admin.." and it also decrypted the files fine.
may be good to disable the AV so no interference during the scan.
Quads