Yeah, the zip file is working properly now. Thanks Spinner 8.
Oh, and the web addresses of the forum topics, including those that Mr. Fwibbles put up in his recent help ad for this game, in their old format are working fine now. Phew!
Ah, it seems that the webmasters have forced a redirect from the old format for any topic links to the new format (? and = in place of / and , respectively) automatically, which is good news, definitely.
Added: The 'Relevant Link' email address is missing in the OP above. But I can see the address when you hover the mouse cursor over the same 'Relevant Link' on the front page news for this project.