Go to LW's library, click on Saved Files. Now highlight the file you want to delete & click Explore...your saved folder should open for you. Close LW & when it's properly closed, delete the file from your saved folder.

If you're still having trouble deleting it, there's more info & utilities to try here.
http://www.gnutellaforums.com/downlo...elete-all.html

Right click on a file outside of LW (ie not in LW's library...find your saved folder instead)...there should be the option to scan the file with your AV program.