Please do not invite anyone but members of the CotH community unless you have permission from myself. Java is extremely inefficient, so even having a few players online will cause lag. Furthermore, running several servers on one machine (WoW, MC, Terraria) does take a bit of memory!
Anyway, to connect to the MC or Terraria servers, use the same address as you do for CotH: logon.conquestofthehorde.com
For CotHCraft:
When initially connecting, you won't be able to do much - not even build. You'll need to head over to the MineCraft Users thread to get yourself added to the list. Once I add you, you'll be able to use various commands and BUILD!
To view a map of the server, visit logon.conquestofthehorde.com:8123!
For CotHaria:
You'll need to connect via port 7777 using the password graknub.
Anyway, to connect to the MC or Terraria servers, use the same address as you do for CotH: logon.conquestofthehorde.com
For CotHCraft:
When initially connecting, you won't be able to do much - not even build. You'll need to head over to the MineCraft Users thread to get yourself added to the list. Once I add you, you'll be able to use various commands and BUILD!

To view a map of the server, visit logon.conquestofthehorde.com:8123!
For CotHaria:
You'll need to connect via port 7777 using the password graknub.