Tried to use the Windows Default Add/Remove after installing newest version.
But the ccleaner program is the only entry.
Diskeeper does same stunt.
Dropping back to old version.
Can you give some more info please such as operating sytem, service packs etc.
Was it the full version, slim or portable?
Did you do an over the top install?
Did dropping back to build 19 bring back your add/remove list?
I have latest ccleaner new version as do many others, yours is the first time I have heard of this problem.
What does ccleaner list in its uninstall list (if you would be kind enough to reinstall and have a look )