cant delete file

i have some files that come up in search. when i click on properties they appear to be located in content.ie5. however when i attempt to delete them it says they are no longer located there and so i cant remove them from the search. they are videos and documents. However im sure they are no longer on the system. iv tried accessing content.ie5 folder via safe mode and these 30 or 40 files do not appear there. iv tried ccleaner but i cant remove the files.

how can i delete the files. please help. (vista user)