Thanks jimbo.

I tried searching for the old version number and I got lots of hits.

But the sites don't seem to have the file.
Instead they just offer a link to the maker's web site, which...

So after all that trouble to get Free Video Editor, I finally have it.
It installs and it works.

But it's not free.

It's called "free". But you have to pay $9 per year. So how is that free?...

Earlier tonight I followed that link to the tucows site. The big "Download Now" button in the middle of the page brought me a file that was LOADED with malware.

I don't know whether 19 mal-hits on...

Thanks, Gordon. But no joy. AVG declares it "Win32:Open Candy-D", and quarantines it.
And virustotal.com threw a fit!

Avast Win32:OpenCandy-D [PUP]
AVG ...

I'm still interested in a suitable MKV editor, and a search brought me back here. I re-tried that MEGA link, hoping it would still work. It still does.

So I downloaded it ... and it's still...

Totally uninformative? Huh?
The OP said "Here's a link to the decent version ... MEGA"
So I downloaded that ... and I reported the unfortunate AV results. Simple.

Mega-virus!
virustotal.com reports this as:

AVware Trojan.Win32.Generic!BT
AegisLab Pua.Opencandy.Gen|2|103!c
Antiy-AVL GrayWare[Adware]/Win32.OpenCandy.heur...