I can't delete nor move some of my downloaded files
 

I use Windows XP.
So far i could delete from my comp (or move or rename) any file that was downloaded from LimeWire. Today I downloaded a few and I'm unable to delete (or move or rename) 3 of them. When I try, it says it can't do it because the file is used somewhere else.
As said in the FAQ, I cancelled the downloads in LimeWire, quit W Media Player and finally I did reboot my comp. I DIDNT HELP! I still can't delete or do anything with these 3 files!!! :( :confused:
BUT I DONT WANT THEM, ABSOLUTELY NOT !!!

On top of it, one of them contains 0 Ko (yes,zero) although it was announced to contain at least 2000 Ko and took normal time to get downloaded... :confused: :confused: :confused:

Can anybody help me to get rid of these 3 files?