I found a working version of the game, along with a three other games (not advs though) here:
http://www.planetsmeg.com/cgi-bin/pagegen.pl?games
EDIT: there is also a zip file of the game in the downloads section of the site, and lots of more RD related stuff.
THE MOTHER OF ALL EDITS: But it still doesn't work. My guess it has something to do with JRE or security. Anyway, you CAN play it on the net.