Download and unzip the file kc4x4.zip to your hard drive and put it in the main Monster Truck 
Madness Directory. By default this will be C:\Program Files\Microsoft Games\Monster Truck Madness 2 


After that, if you have a program like PODMAN or PODMATE, you can just select the file and
 enable it, if you do not, in that same directory you will find a file called POD.INI. 
Open up this file into a text editor and you will see a number on the first line.
 Increase that number by one. If it's 9, change it to 10... if it's 10, change it to 11, etc.
 Next, at the very end, on a new line just put kc4x4.pod and then save the file and start Monster
 Truck Madness and you'll be able to use Misbehavin' and Dragon Slayer! 


A good program for unzipping files can be found at www.winzip.com 