It worked great for 1.0 palm version, but the guy never updated it to work with 1.1. It was cool! But yes, now useless.

Warren is correct. Many people write various tools, etc. for a game while they're playing it and make those tools available to others, as was the case with the Village Sim Toolkit. It's the author's choice whether or not to update it when a game changes. JWU chose not to.