HELP TRY to do a beta server

HI GUYSSSS!!! i want to do a server without hamachi
i got a wireless internet thompson tg784 and i make a port-.-
and i got into whatsmyip.org but when i start the server its look like this:
[INFO] Starting minecraft server version Beta 1.5_02
[WARNING] **** NOT ENOUGH RAM!
[WARNING] To start the server with more ram, launch it as "java -Xmx1024M -Xms1024M -jar minecraft_server.jar"
[INFO] Loading properties
[INFO] Starting Minecraft server on 78.69.224.161:25563
[WARNING] **** FAILED TO BIND TO PORT!
[WARNING] The exception was: java.net.BindException: Cannot assign requested address: JVM_Bind
[WARNING] Perhaps a server is already running on that port?



PLEASE HELP ME