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I took your advice koster and downloaded the trial version onto my laptop and it works fine. Problem is though that it is only a trial version and will require me to pay the full price for the program just to get the product key!
As for my desktop Casztor, I used your product key and it worked perfectly on my torrent version. What I discovered though was that the torrent version was all in Swedish and I cannot find any way to convert it to English!! I guess that's the risk of downloading from an unknown source!!!