@Huinesoron, this post (
http://forum.barrowdowns.com/showthread.php?t=19224 ) goes a bit deeper into the whole 'Tal-Elmar' text, and what the latest versions of it are like + some earlier but non-contradictory statements: such as the fact that Tolkien imagined Tal-elmar journeying to Rhovanion and the Sea of Rhun at some point.