It isn't that simple. You would need to merge all of the different files from the new version K-Mod into the K-Art mod. To do the C++ files necessary, you would need a copy of one of the versions of Visual Studio Express (available for free) in order to compile it, and a working knowledge of C++. Then there is the Python and XML that has to be merged. You might be able to just copy the CvGameCoreDLL over the old one and then merge the Python and XML after that. It might work. My advice is to start smaller, and learn how to tweak the game slightly by making small changes to some of the code. Once you're comfortable making small changes, find a small mod component that you like and merge it into the base game. That's how you learn to mod. You could also hang around the Creation and Customization forums for some good tips on modding. You can also ask a lot of your modding questions there.