Hi,
I found this,
http://www.softpedia.com/get/PORTABLE-SOFT...-Portable.shtml
which appears to be the current version of ccleaner in a portable version.
Is this supported? ie will it auto-update, and was it packaged by piriform? (I don't see a download link for it on piriform downloads)
Also, if there is a portable packaged version being maintained, it might be worth submitting a modified one to the portableapps.com repository as that is a very popular portable packing format and I regularly look there for new apps.
Cheers,
T