Hi All,
As JM says, we don't have exactly the same rules and reg's in Oz as UK. The suggestion that the PR's, or another version of the marriage cert, may have this witness name written differently is a valid suggestion so we've have just ordered another "official" (ie untranscribed) version to see if the witness wrote his name in a ledgible fashion

Unfortunately that will take up to 3 weeks to arrive so it's just a case of waiting for receipt of cert.
In the meantime, also asking/looking for the original PR's to see what they might have to offer.
So, it's just a case of wait and wait at the moment (with fingers crossed)
Thanks for all the ideas, suggestions and recommentations and everyone's help and attention.
Cheers
Di