Allright, this is my guide on making a vent server. I'm typing this all myself right now.
First, go to Ventrilo - Surround Sound Voice Communication Software and download the latest version of the server program (this guide is for windows XP)
Run the installation wizard. (I expect you all don't need me to hold your hand through this)
next, after it's installed, you want to test that it works.
start up your vent server (start > All Programs > VentSrv > Ventrilo Server) and ventrilo client, and make a new server. call it "my vent" or something along those lines. the Hostname or IP is "127.0.0.1" and the port is "3784"

see if you can connect. If you can, you're golden.
next, click start > All Programs > VentSrv > Edit INI file

yours will look like this:
Code:
[Server]
Name=Server 1
Phonetic=Server 1
Auth=0
Duplicates=1
AdminPassword=
Password=
SendBuffer=0
RecvBuffer=0
Diag=0
LogonTimeout=5
CloseStd=1
TimeStamp=0
PingRate=10
ExtraBuffer=0
ChanWidth=0
ChanDepth=0
ChanClients=0
DisableQuit=0
VoiceCodec=0
VoiceFormat=1
SilentLobby=0
AutoKick=0
You don't really have to change anything, but you can.
Code:
[Server]
Name=Server 1
Phonetic=Server 1
Auth=0
Duplicates=1
AdminPassword=youradminpassword
Password=password
SendBuffer=0
RecvBuffer=0
Diag=0
LogonTimeout=5
CloseStd=1
TimeStamp=0
PingRate=10
ExtraBuffer=0
ChanWidth=0
ChanDepth=0
ChanClients=0
DisableQuit=0
VoiceCodec=0
VoiceFormat=1
SilentLobby=0
AutoKick=0
change the dark red to whatever you want your server's name to be.
change the youradminpassword to whatever you want your admin password to be.
change the password to the password you want people to have to enter to get in (for no password, leave blank)
you don't really need to know anything else as far as your INI file goes, just know that 1 means on and 0 means off.
For other people to connnect, you need to give them your IP. to find this out, go to What Is My IP Address? - IP Address Lookup, Internet Speed Test, IP Info, plus more
they will put your IP in the hostname/IP sectin (where you put 127.0.0.1 (127.0.0.1 is the localhost, it bounces itself back to your computer))
Lastly, no one will be able to connect to your server if your running it through a router and you don't foreward the port 3784.
Go to your router's setup (192.168.1.1 for me, yours might be different) usually port forewarding is under Applications and Gaming, or something along those lines.
you need to foreward the internal and external port 3784. use "both" for protocal if you can, mess around with it if you don't have that option. for the "to IP" part have the suffix be 100

save your changes, and happy venting!
(FYI, this can only have 8 ppl in it at one time)
Since i'm feeling in the happy mood, i'll also tell you guys how to make new channels.
so after you're connected to your server, you need to log in as an admin. Right click the little computer icon, Server Admin > Log in

use the admin password you made in your INI file.
there whould be an "A" in front of your server's name now.

Next, right click the computer icon, and go Channel admin > Create...

it'll open the channel creation wizard. It's pretty self explanitory, but here's a pic anyway:

You can put a password in, and people will have to enter that password to get into that channel.
Hope that helped everyone!