Ok so I finally installed and got a Bukkit server running..YAY....but, after giving other players my external IP for the server...they cannot connect with it. I am running on a 64-bit windows 7 computer with java 6, update 26. My server's port forwarding is done through my verizon modem where I have set these settings..

Minecraft:
TCP Any--> 25565
UDP Any--> 25565

My server IP address is 192.168.1.2:25565
Then the external IP address is 173.74.166.180:25565

I use the following Plug-Ins...

World Edit
World Guard
GroupManager
FakePermissions
Anti-Grief

If necessary to know...I check to see if my server is open using PFPortChecker.....at portchecker.com

And my server properties...

#Minecraft server properties
#Wed Jul 06 18:47:51 CDT 2011
level-name=RogsMultiplayer
allow-nether=true
view-distance=10
spawn-monsters=false
online-mode=true
spawn-animals=false
max-players=20
server-ip=
pvp=false
level-seed=
server-port=25565
allow-flight=true
white-list=false

Any more information that you might need to know PLEASE ask me...I would love to know the answer to this problem...THANKS! BTW I tried the localhost thing...it didnt help...