Today marks the release of Game Tools 2.0, which is a suite of tools for editing and modding games...
Game Extractor 2.0 (http://www.watto.org/extract)
Game Translator 2.0 (http://www.watto.org/trans)
Game Imager 2.0 (http://www.watto.org/imager)
All these tools are now available, so head on over to the websites to get your copy.
All tools require the use of Java 1.6, so make sure you update your Java version at http://www.java.com