Yep, it's just a big image. They have maps in-game now? I honestly haven't played for years, ha ha. I just turn the server on every once in a while when people want to play it.
This is the new link for the current Minecraft world map.http://virmir.com/misc/minecraft/world.zipCurrent update: 3/1/2017Due to the file size, I won't be maintaining a progressive archive any longer-- if you want to see progression, make sure you save each version!Historical archive can be found at http://gallery.virmir.com/?browse=/Minecraft/Maps