I just recently accidentally reset defaults on my Limewire, and it wouldn't open up the right old files I was getting. I think it's because it doesn't know which incomplete folder to use, because I changed it to a different file in my videos, but I dont remember how. HELP

Delete the Lw preferences, go to C:/Docs. and settings/your username/LimeWire/preferences and delete all contents, it should help, althought it isn't any guarantee

LW's preferences folder (hidden by default) is here:
C:\Documents and Settings\your username\Application Data\LimeWire

People who've used LW versions older than 4.9.34 may also have a preferences folder here:
C:\Documents and Settings\your username\.limewire

Just to add to what the others have said. If you moved the location of your incomplete folder you'll have to point LW to the new location or replace the new folder with the old one.

See this thread: relocate my incomplete folder?

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