It's up to version 19 so far. You can get it at the Oakland mirror of the SimTel site. Look in the Dos collection under graphics for the program frainxxx.zip. I think it's frain195.zip at the moment. If you want to check out the funky fractal back on my home page again, press here .
Satellite images are also fun.
The University of Illinois maintains an impressive set at their Weather Visualizer site.