Didn't you already start a thread like this?
http://forums.cosplay.com/showthread.php?t=39476
There isn't a group of people that control and schedule all the cons across the country. ^^; CCAmanda gave you very good advice in the other thread about what you can do. If there's nothing already set, you should take action to solve the problem yourself.
waahhh!! no anime or cosplay cons in montana!
