can't get Nicecast to work through my 2Wire
I'm trying to use Nicecast (a Mac application for internet radio broadcasts). I've used it in the past, but I had to swap out my 2Wire since the last time, and I've forgotten the magic setting. I'm pretty sure it's related to the firewall -- Nicecast is set up to use port 8001. I created a user-defined application with that port number, and enabled it, but traffic still can't get in to my Mac.
Any ideas what the secret here is? I know it works, because it used to work, but I can't remember the missing ingredient.
As a side note, even though I've added my user-defined application to the "Hosted Application" list, when I hit the edit button, it doesn't show up. Any ideas on this?