I check the following locations and here are the results.
C:\Documents and Settings\user1\Application Data\WebAssist\Expression Web\CSSSculptor
No WebAssist\Expression Web\CSSSculptor is in this location.
C:\Documents and Settings\Administrator\Application Data\WebAssist\Expression Web\CSSSculptor
WebAssist\Expression Web\CSSSculptor is in this location but there is no license.dat file.
C:\Documents and Settings\All Users\Application Data\WebAssist\Expression Web\CSSSculptor
No WebAssist\Expression Web\CSSSculptor is this location