Hey people, I've been working these past two weeks on a server emulator for Jewelry Master. The server allows for both local and online play, so you can also host your own server. To know all the details and download the server go to the GitHub page. I also wrote an article about the development over my website, in case your are interested on it. The game clients are available on archive.org, one is version 1.32 (from the Wayback Machine) and the other 1.40 (shared by @colour_thief). Both are fully compatible with the server.