Create a Browser Based Client For Existing Game

I currently have a working multi-player 2d game that I want to run in the browser, it currently supports about 8-12 players (really does not need to support any more then that at this time). Right now it is not browser based, but the code compiles fine to a stand alone director exe file (source can and will be provided as it contains all the graphics etc.). If you understand Macromedia/Adobe Director 8.5 and you could make it function in the browser with the Shockwave plugin, that would be fine, but I would also take any other means to make it work in the browser. It currently runs using the director multiuser server 3.0 (server side scripts can be provided as well if needed). As this project is to replace the older downloaded client the server side can change as well if needed. (ex: mysql etc) Game is up and running and has a few players every now and then so you can see what I am asking for. (self extracting) Exe Client is attached Source code for the non browser based client is currently in Director 8.5 format (language Lingo).