Thank you, MeshBox,
That has gone a good way to explaining the issue and giving us, as users of this site, an idea of what to look for in our collections. I seem to be fortunate in that I had not downloaded that particular item.
I was able to retrieve from Google a partial list of other models that particular person uploaded and made available on this site and will be happy to pass on the details to anyone interested, so that they may amend/append their collections to not include possible pirated/unlicensed items.
Or you can perform your own search using the users name and adding sharecg to the criteria, then click on 'cached' rather than just the link.
I had one item which had been offered by that person and I have deleted it from my HD,.
Sadly, this entire episode has shown us all that we need to be much more vigilant in our use of this site and if we feel that something is wrong or out of place ( fishy), we should, at once, contact the admin. of this site with our concerns so that we can prevent the mis-use of what is otherwise, and in all respects, a marvelous endeavour.
Maf.