Manila/Radio ports to open for server?

[Stephen Waters]

Hi,

I can use Radio to update my server's pages from inside our firewall 
but I get a -3259 error message from outside the firewall.

Supposedly ports 80, 5335 and 5336 are open to TCP at the firewall. Do 
other kinds of packets need to be open as well?

What is the mechanism used when I click on the "Edit with radio" 
button? What happens? What gets sent from the browser to server, from 
the server to radio, from radio back to the server, etc.

Regards/Stephen