Many thanks for the response,
But I don't think it applies to my problem, my version is at 1.001 -
that was one of the first things I checked - I have not received any of the messages you have indicated, error only appears when trying to install the 1.4 patch.
If I read from the Greywolf website (old I know) correctly it states I have to be at version 1.4 before installing their mod, which having played ages ago I really liked.