Дополнено (1). 09:47:50 [INFO] Starting minecraft server version 1.5.2
09:47:50 [INFO] Loading properties
09:47:50 [INFO] Default game type: SURVIVAL
09:47:50 [INFO] Generating keypair
09:47:50 [INFO] Starting Minecraft server on 80.xxxxxxxx:25565
09:47:51 [WARNING] *** FAILED TO BIND TO PORT!
09:47:51 [WARNING] The exception was: java.net.BindException: Cannot
ested address: JVM_Bind
09:47:51 [WARNING] Perhaps a server is already running on that port?
У тебя закрыт порт 25565. Поищи в интернете Как открыть порт 25565? Тебе очень много ответов будет.
Переустанови винду