I HAVE ABOUT 15 SONGS IN MY LIBRARY BUT CANT SEEM TO BE ABLE TO MOVE THEM TO BURN THEM ?

Normally you wouldn't move them from LimeWire. Open up a program that burns CD's and go into the shared folder that the files are automatically saved in(My Music, etc.). You can copy the files from that folder and put them into the program that burns CD's.

where is this shared files folder located?

If you have Windows then it would most likely be in your My Music folder. Or you can check in LimeWire. While in your LimeWire, click on Tools, then Options. Click on Saving and in the first box you will see the path to your folder that your music is saved in (ie. Documents and Settings/My Music). That path will tell you where your music will be. Let me know if you are still having problems.

if in windows you most certainly can move your music files from Limewire to another folder, select the songs, then make a new folder, then, copy & paste all songs from your Limewire folder into the new folder you made on your drive.