If you're having technical difficulties with a 1 player game, expect a technical apocolypse with a MMORPG. Not only is a MMORPG a gigantic project, you probably don't have the human resources available to test it and learn from your mistakes.
That said, sending coordinates to a server is really easy. See http://blitzbasic.com/b3ddocs/command.php?name=CreateTCPServer
That said, sending coordinates to a server is really easy. See http://blitzbasic.com/b3ddocs/command.php?name=CreateTCPServer