linux - Port not opening even after adding security group rules on Amazon EC2 instance

I have an Amazon EC2 Linux instance. I recently installed SmartFoxServer in my instance. For that I needed to open 9933 port. So I just created inbound rules on Amazon EC2 Manager console website.

My rule is

Custom - TCP Rule - TCP - 9933 - 0.0.0.0/0

But still my port is remain closed. Am unable to connect. Anything else I need to do after adding rules on security groups?

http://www.yougetsignal.com/tools/open-ports/
here in above url I checked whether my port is opened or not. Its closed