You can share any folder on your computer by going to preferences>sharing>add shared folder, or by adding a folder in the Limewire Library. I don't like using the library, though as Limewire tends to hang when you do that, and there is the danger that you might use the delete function (rather than "remove frome save") which removes files instantly from your hard drive.
I believe you can add individual files in the Library, but I have never done this. I hope this helps
