I wouldn't trust anything that comes off a Torrent. You have no idea whether it has been tampered with or not. It was RTM ten days ago and no one outside Microsoft or the TAP has access to it - even the Exchange MVPs do not.
As you seized the FSMO roles, if you attempt to do anything with the old domain controller you will just cause more damage. Seize of roles should only be done if the original domain controller is dead and will never come back. Once it has been done the machine should never be booted back up again.
Simon.