http://www.warcraftmounts.com/retired.php
The Original Epic Mounts
"These mounts were the original 'epic' level 60 mounts present in the game when WoW launched. In Patch 1.4, these unarmored epic mounts were removed from vendors and replaced with the armored level 40 mounts that we have today.
Characters who already owned one of these retired mounts could keep it or trade it in for a new armored mount, but the old versions here can no longer be purchased."
Wouldn't mind seeing this done