1. Did you go through the tree on the left? The index page is less useful then the online version, but you should be able to find all articles in the items in the tree. They are organized by package.
2. I'll have to search forum to answer that.
3. I'm afraid you need to compile and run it yourself. There is no download link yet.
4. There are no examples in the "reference" pages. There are the GuiMT and GuiLock packages with fairly complex examples. Also link .