Thanks to BestInTheWorld. This example for VLR's series that runs Sunday nights at 8:30 et:
Ok First of all you will want to download ventrilo.
www.ventrilo.com/download.php
Install it for your version of Windows. Then Once it is install open the program. You will have to setup a new user. Click the arrowhead by the New User tab. Then click New. Enter Your name and hit ok. Next you will have to setup the server for VLR: Click the arrowhead by the Server Tab. When that opens hit New on the next page, and just enter something and hit ok. Then enter this for the IP teamvlr.vent.nfoservers.com and this for the port number: 3800.
The chat is opened by clicking Chat on the right (third button down below Comment and Disconnect.) Here is where lineups are posted for each race and what DTR2 server each is being run in.
Im assuming you have DTR2 installed. If you do not, then you will have to either buy the CD on Ebay or you can download the "DTR2 Full Game Download" on here. The next step will be to put the Gen5s and Kokomo In the game. If you look on the TeamVLR homepage at the bottom, there is a listing of the Most Download Items.
Click Gen 5 Late Models They will be the fourth one down. This brings up a new page, scroll to the bottom and then click download below the Gen 5's picture. Then open the .exe file, click install and the cars and skins will be put into the game automatically.
As far as getting the track, you will have to go to the Downloads page on here. Hover over the Community tab and click Downloads. In the Search Keyword, enter "Kokomo". The second result will be the Kokomo 2k12 track. Click download, and it will then be opened as a zip file. Either copy it to your tracks folder: C://Games/Infogrames/Dirt Track Racing 2/Data/Tracks or extract it through WinZip.
The next step will be getting the DTR2 Server IP set up for VLR. Start the game. Go to Multiplayer and hit Join IP. Copy this into the IP: 216.52.143.72:32263. Hit Join and you should then be in the chatroom server. This is the practice server, you will have to look in the Chat in Ventrilo around 8:20 EST tonight to see what server you are running in. Thats about it.