[galaxy-dev] can't run instance for CloudMan

Hi, I am having a problem with running galaxy on the Amazon cloud. I have tried this several times over the past few days, I followed the list and it seems my instance is up and running. However, when I type the DNS in any browser it can't connect to it. I am kind of aiming in the dark now because I don't know where the problem is, anyone can help? thanks! stefano