EDIT: NVM, just delete this.
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I think CCLeaner should remove the files in these folders.
Comodo Internet Security put a file in here every time a scan is done, and they don't seem to do away before you delete them manually, so they just build up in that folder.
C:\Documents and Settings\HP_Administrator\Local Settings\Application Data\COMODO\.tmp
And gimp creates thumbails here:
C:\Documents and Settings\HP_Administrator\.thumbnails\small
C:\Documents and Settings\HP_Administrator\.thumbnails\normal
C:\Documents and Settings\HP_Administrator\.thumbnails\large