It sounds like you are missing maps. Create a maps directory within your server directory, go here:
http://sourceforge.net/project/showf...group_id=88515
Download both the Maps and new_maps files. (They are hefty downloads, so give them some time) Extract Maps first, make sure the actual files are in the maps directory you created, and not sub folder of that, then do the same for new_maps, overwrite if it asks you to. Start up the server and let us know how it goes.
