The files are not intended to be found by oneself. Otherwise what's the point in downloading your own files.

Check the files in the library. Look to the far right columns under Hits & Uploads. Hits shows if they have been seen by other people in their searches. Uploads show (a) attempted uploads (b) successful uploads.

Do you see a brick wall in front of the blue world icon at the bottom of LW's interface? (Sample image)

For your friends to see them, why not allow them to either direct connect or send them the magnet links to them; How to use Magnet Links & Direct Connect