[DanLore]

How are you hashing passwords? Some hashes can actually be used in PHP (such as whirlpool). Unless it's a custom hash which I doubt, there is most likely no chance of decryption for the passwords, otherwise what would be the point of encryption in the first place.

Anyway, if I can know what encryption method you're using, I can tell you if you can check the hashes via PHP (I assume you're using PHP).