People can't connect the my bukkit/hamachi server help

here is my properties file
#Minecraft server properties
#Wed Mar 14 20:18:33 EDT 2012
allow-nether=true
level-name=world
enable-query=false
allow-flight=true
server-port=25565
level-type=DEFAULT
enable-rcon=false
level-seed=
server-ip=
max-build-height=256
spawn-npcs=true
white-list=false
spawn-animals=true
online-mode=false
pvp=true
difficulty=0
server-name=Unknown Server
gamemode=0
max-players=20
spawn-monsters=true
generate-structures=true
view-distance=10
motd=Russells Minecraft Server
and my the only plugin i have is my home this 1.2.3 server

this build 2060

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

You don't have an IP in :/

 

Watch this tutorial:

If you want, you can download a pre-made server and all you have to do is set up a hamachi network, put the hamachi ip into the server properties file and allow all the Java SE Binary through your firewall. But yea, video explains it all.