thanks for commenting... at least you're reassuring me that this doesn't go totally unnoticed
Yes, even in this rather simple case, it's unfortunately not as simple as editing some file with a text editor.
So first things first, you need to have the development environment ready for this: get a Java Delevopment Kit [JDK] (NOT only a Java Runtime Environment [JRE]) from http://www.oracle.com/technetwork/ja...ads/index.html
Since Oracle has bought Sun, the site has become a mess
but you should still find your way through.
Second, you probably want to get Eclipse, which is an Development Environment for Java. Get it from http://www.eclipse.org/downloads/pac...pers/indigosr2
Third, if you have never used any of these tools, create a "hello world" project for yourself (I'm not kidding), and make sure that you get to compile and run a "Hello World" application.
Fourth (... and that is indeed a huge leap from "third"), make sure that you can import the project from git. That involves having git installed in the first place, and cloning and synchronizing to the remote repository from your local installation. The procedure to do so is not complicated, but it really depends on your local configuration, so I can't give any boilerplate instructions here.
Fifth , you have to make sure that the JBPatcher project actually has its dependencies satisfied. Essentially, that only means that you must have a "User Library" called "Kindle Touch 5.1.0", which includes all the jar files from the KT5.1.0. If you have a copy of your Kindle's /opt/amazon/ebook/ on your computer (strongly recommended), then that should do. You only have to set up that User Library once.
Once you have the JBPatcher project "error-free", you should be able to follow the instructions without any problem, and actually to write your own patches