I managed to compile the craftbukkit & place the plugin on first page as only plugin - and server is up and running. However when I try to mod the minecraft.jar with the class files and delete meta-inf, minecraft itself refuses to launch! Connection to server unmodded just crashses the client, so I assume I do have the server working but not client.. and with spout I only got outdated client message.. How did you solve this to connect to server? Got it to work, spout had revered back to 1.0 for some reason! So yes, I have indeed a test server running 256 map height now, niiice! Hopefully, both vanilla client & bukkit will support this without need to modify and custom builds so many more players can reap the benefits of higher worlds! EDIT by Moderator: merged posts, please use the edit button instead of double posting.