Uh, on a Mac you'd just throw the application into the trash, along with the preferences and end of story. On a Windoze Pc, I think you have to run an uninstaller. But anyway, go to Tools, Options and Saving and see where Limewire saves your stuff. Also, did you turn Sharing off (when you do, it has been reported that the shared folder dissapears from the library)?
If there is no directory for saving, create a folder and specify that as the saving location. Make sure that you have sharing on and click Apply.

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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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