Try moving the files from the Media Player to your Shared Folder Outside of Limewire. These Files are on the HDD.
While in LW, go to the Library and click on Explore. This will open the Shared Folder on the HDD. Now you should be able to D&D to the Shared Folder.
AFAIK, YOU, can't browse YOUR, Shared Folder. You will be able to see if other members are downloading or hitting your files from the Monitor window. Hope this Helps.