I have proposed a contest but I don't know who to communicate with.

I want to hold this contest as soon as possible. I have plenty of time till mid August.

So, coordinators or ones who held a contest before, what should I do? Please help. Thanks.

p.s.: for more details, I submitted the proposal in late June but I was busy at that time, these days I've made the problems completed(with statements and standard programs). I can finish validators and testcases in days once my contest is dated.