Ran across this a couple years ago and still use it on a regular basis to help explain to newbies or relatives and friends that want to go out with me but don't know spit about it. Good simulator.
Helps to have a good internet connection when you use it. Otherwise you can find yourself fighing the connection rather than learning from the program. Lots of fun though and good learning experience for all points of sail and wind conditons.
Recommend spending some time with it and using it to try different combinations of heading, wind speed and trim.
Great site !. I haven't gotten any work done for just about an hour now...