web archiveにほとんど全部採集されてるみたいだよ。
目についたバージョンだけ拾ってきた。

v5.22.5724
https://web.archive.org/web/20161004235312/http://www.piriform.com:80/ccleaner/builds

v5.35.6210
https://web.archive.org/web/20171001085704/http://www.piriform.com:80/ccleaner/builds

v5.43.6522
https://web.archive.org/web/20180616034058/https://http://www.ccleaner.com/ccleaner/builds