I followed the instructions and when I don't add my world into the folder and change the level name in the server properties files, the server works perfectly with the random generated world. When I change the server properties and add the world files into the server folder and then try to open it up to play, it says the server timed out or Old Server is out of date. Anyone have any ideas?
Open %appdata% then go to .minecraft then saves. Put the world folder from the server there and when you go into single player, it'll be an option. Don't drop the contents of the server world folder there, drop the folder so if it's "world" the saves folder should have a folder called "world" as copied from the server.