You mean you want to kill some dlds and not have them come back (ever again, unless you search for them and download them anew)?
In that case you have to options:

either

-go directly to the Incompletes folder in the Finder (opening a new window by pressing Cmd-N will get you to the right place) and searching for the files to delete then moving them to the trash manually.

or

-Launch LW and go to the Library pane and select the Incompletes folder. Search for the files there, select them and click delete.

I suggest the second option as the first might corrupt the downloads.dat file needed to resume killed files.

If you don't have any active downloads (meaning that you have only comleted dlds and killed dlds which you no longer want in your comp) you can delete the entire content of the incompletes folder (from the Finder. The content, not the folder itself). Even the downoads.dat and .bak files. Lw will create new ones next time it launches.

Cheers

__________________
iMac G4 OSX 10.3.9
RAM 256MB
LW 4.10.5 Basic
ADSL anything from 3 to 8Mbps/around 1024kbps

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