okay, i did that.
%TEMP% echoed back as "%TEMP%"
%USERPROFILE% echoed back as "C:\documents and settings\dan" which is the folder that had my internet favorites, start menu contents, mydocuments, etc. - everything that was deleted. I am confident that CCleaner targeted that folder (It's one hierarchy level above the actual mydocuments folder).
I looked in the mycomputer settings to change the variable values... and didn't see either TEMP or TMP anywhere in the list. I had no variables in the personal variables (upper list) and about 12 in the system variables (lower list). I added %TEMP% and %TMP% as variables with the language you suggested for the values.
Any suggestions on the best file recovery software?