Dear Dusty,
I have searched for possibilities to contact you, but it seems like these GitHub issues are the best way to accomplish this.
My name is Nico Mexis and I am part of the MCArchive team, where we build the biggest sorted and publicly available Minecraft mod archive there (probably) is.
Of course, it would be great to archive as many MCA versions as possible and hence we would need your help.
I have found a few versions here and there, but my personal archive is very incomplete.
So, it would be extremely nice if you could look whether you still have old (unavailable) versions of MCA, which you could share with us to preserve for the future.

This is an example of a file that existed once (but Zippyshare went down last year): http://www9.zippyshare.com/v/48554363/file.html
Also, older versions were probably also available here: http://dl.dropbox.com/u/64124307/Minecraft%20Comes%20Alive/v1.4.1/Minecraft%20Comes%20Alive%20v1.4.1.zip
But also that is not available anymore and the Wayback Machine excludes Dropbox links.

I would very much appreciate a response either via email ([email protected]) or via Discord (hyperspeeed) or just here within GitHub issues.

Thank you very much in advance and
Best regards,
Nico Mexis