In the channel, type ".commands" (without quotes) for a list of commands. use ".start" to start a game, it's pretty straight forward.

If anybody else would like a copy of StockBot for another server (or whatever reason), you can grab it here:
http://coredump.t28.net/stockbot/mIRC-Stock.tar.gz

Note: this will only work with mIRC, and I am unaware if there are any version restrictions. (I do eventually plan to port this script to another language such as php, perl or python. Just not sure which one yet.)

I'll try to keep this hosted for as long as possible, but I make no guarantee that it will be available indefinitely. Standard disclaimers apply.. Though I doubt this script will cause harm to anyone's computer, it's available on a 'use at your own risk' basis. I haven't had time to go through it yet, so I have no idea what is in there.