What do I do?

[1winamp11481]

Hi. I presently use winamp Player v5.621 for music. Recently I moved my music files from the computer hard drive to a usb flashdrive in order to open needed space on the hard drive. Now my playlists won't work. How do I tell winamp to recognize the music in the new location without having to re-enter new playlists? Help appreciated. Thanks.