The link is the same Brother provided, and I downloaded all sections from the links.
When I downloaded, I was informed that the downloads were successful. It was after that, a oblong box appeared with three tabs around 'some blue wording', similar perhaps to programme information. The three tabs consisted of 'browse' decompressed' and 'cancel'. I pressed 'decompressed', because I wasn't sure what 'cancel' would do.
Perhaps I should have used the 'browse' tab, and hadn't understood that, at the time?.
I'll use your links, and download again, and see what happens?.