Teamspeak is a voice over internet program, much like Ventrilo. It is fairly easy to install. You can download it at http://www.teamspeak.com .
Once you have downloaded it, let it unpack and do its thing. There is a setup wizard, and you should walk through each step carefully. When making changes to the sound output or microphone input, or any key bindings, you may need to restart. Once you have finished the wizard, ignore everything else and push "Connections." Then select the "Connect" option, which will prompt you for a server address. Enter ts.mocreaturescommunity.org as the address. If you need to change anything after you've connected, you can do so under the settings button; the wizard is there, as are some sound features.
The TeamSpeak server we use is hosted by the owner MTPetey. There may be uncontrollable downtime due to computer or ISP issues.
UBP also maintains there own Teamspeak server. It is your best bet if own Teamspeak is offline. Most people who play on our shared Ark server also use the UBP Teamspeak. The uBp login information is as follows: Address: ts3.unitedbaseplayers.org If you can get to the lobby, we can likely help you fine tune it. If you can't well... go learn. uBp Teamspeak and uBp servers in general adhere to a clean language policy. When we are on their servers, we follow their rules. Come to think of it, their rules are pretty much our rules too.