This is a occasional problem that has been noticed in the LW 4.13 Beta.
Have you restarted Limewire since deleting them, or clicked refresh in the LW Library window. Which version of Limewire are you using?
Can you see these files in the Limewire Library, and are they in black or red? Aso did you delete them from the Limewire Library, or from their actual folder, or did you just select "stop sharing" ..sory for all the questions ..just trying to find if you have missed anything