First, are you looking to create your own mod, or use someone another person's mod along with BUG, to create your own private mod? The process of adding BUG to another mod is called Merging, and can be quiet tricky. You'll need a compare program like WinMerge to compare the differences of each line, and you go through and pick and choose which lines to keep or get rid of. This can take a very very long time. Check out our Wiki Page on our SourceForge project page for the Modders section for more detailed information. If you have yet to create a mod, and are planning on doing it I'd highly suggest starting off with BUG, and adding addition mods to it. It will be much easier that way. Good luck!