How do you get m4a files from LimeWire?

When you start Limewire you need to search for files that are "All Types" then put in the song # like a song from "The devil wears Prada" like Danger: Wildman Then you would type in "06 Danger: Wildman" then wait and if you don't find any m4a files then right click on the search tab and click on get more results :)