Hi, marypatric...
1st, don't necessarily
panic !
You probably only need to 'rename' the partial files...
Hang on here for some others to respond with more info... In the meantime, do NOT do any Hard Disk Defragmenting, OK ?
I would happily answer your query if you were using BearShare but I am not familiar enough with the day to day ops with LimeWire to be confident with a general answer regarding the renaming of temp (partially completed Downloads) files... I assume that the process must be the same for both clients...
But it is best for you to wait for some other regular LW users to reply to you.
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Last - As you can see, I have moved your post to the LimeWire Forum...