Okay, the first thing I'm going to say, is that while this should work just fine for the EU guild, the US guild should expect serious latency, I mean, it's a friggin' ocean (and Norway) in between us. That said;
Installation
1. Download this file.
2. Follow the instructions in installing it.
And that's basically it. If the client asks you to update it, don't. I'm running an old server version, and it requires the older client to operate successfully. Don't worry tough, the only thing you lose out on is the opportunity for Ryno to remotely manage the server.
Yes, I am mocking you. Setup
Now that the client is installed, open it. We will now set it up for use. This will include getting an username, and entering the information required to connect.
We'll start with getting you a username!
1. Press the arrow next to the scrolldown box called Username. This will open a dialoguebox, hopefully named Setup User.
2. Click "New".
3. Enter the username you want. I'd suggest taking your forum name.
4. You may ignore the "Phonetic box". You can just leave this with your username. It basically spells out what you say if you use the chat feature instead of the VoIP.
5. Leave the other two boxes empty, and click OK.
Now that we have a username, let's get the server hooked up.
1. Click the arrow next to server. The box "Connection Editor" should pop up.
2. Click "New".
3. Name the new server "No Mercy". This is the name of my server. (It was originally for my TF2 clan
).4. Hostname or IP should be "78.73.42.45" (Without the quotes)
5. The port number is "3784". (Again, without the quotes.)
6. Press OK.
Now that the client is set up, press connect to connect to the server. If all is well, you should hear a sound, and any users should be in the box below. To talk, press the "LCONTROL" (Left Control key). You may change this bind in "Setup...".
If you want me to put the server online, request a time here. No, I won't put the server online for you and your friends during your CS tournament. No, I won't put it on if you and grandma want to talk. Strictly Petopian stuff.
(US users should expect serious latency, if you want me to, I can help you set up a server too.)
T-t-trojan!? I'll get a better version then. I think there's some kind of "multibox" too. 
