The downloadable executables are sometimes months old. 0.19 is about 3-4 months as of this posting. As the engine is a work in progress I recommend trying out the latest code base which can be downloaded from our page at SourceForge if you have SVN software, like Tortoise SVN, which is free.
I will likely be pushing a new executable in a week or two of writing this. If all goes well, it will be v0.195 and will be much easier to use and understand than v0.19.
